148598640 has 120 divisors (see below), whose sum is σ = 502266960. Its totient is φ = 39370752.

The previous prime is 148598633. The next prime is 148598641. The reversal of 148598640 is 46895841.

148598640 is a `hidden beast` number, since 14 + 8 + 598 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148598641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128304 + ... + 129456.

It is an arithmetic number, because the mean of its divisors is an integer number (4185558).

Almost surely, 2^148598640 is an apocalyptic number.

148598640 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 148598640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251133480).

148598640 is an abundant number, since it is smaller than the sum of its proper divisors (353668320).

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

148598640 is a wasteful number, since it uses less digits than its factorization.

148598640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 148598640 is about 12190.1041833120. The cubic root of 148598640 is about 529.6694747044.

The spelling of 148598640 in words is "one hundred forty-eight million, five hundred ninety-eight thousand, six hundred forty".