148797840 has 80 divisors (see below), whose sum is σ = 477201600. Its totient is φ = 38309376.

The previous prime is 148797839. The next prime is 148797851. The reversal of 148797840 is 48797841.

148797840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 148797840.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3730 + ... + 17649.

It is an arithmetic number, because the mean of its divisors is an integer number (5965020).

Almost surely, 2^148797840 is an apocalyptic number.

148797840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148797840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238600800).

148797840 is an abundant number, since it is smaller than the sum of its proper divisors (328403760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148797840 is a wasteful number, since it uses less digits than its factorization.

148797840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21424 (or 21418 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 148797840 is about 12198.2720087724. The cubic root of 148797840 is about 529.9060471884.

Subtracting from 148797840 its reverse (48797841), we obtain a palindrome (99999999).

The spelling of 148797840 in words is "one hundred forty-eight million, seven hundred ninety-seven thousand, eight hundred forty".