148147440 has 160 divisors (see below), whose sum is σ = 529061376. Its totient is φ = 33592320.

The previous prime is 148147429. The next prime is 148147463. The reversal of 148147440 is 44741841.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273570 + ... + 274110.

Almost surely, 2^148147440 is an apocalyptic number.

148147440 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 148147440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264530688).

148147440 is an abundant number, since it is smaller than the sum of its proper divisors (380913936).

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

148147440 is a wasteful number, since it uses less digits than its factorization.

148147440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 148147440 is about 12171.5832988153. The cubic root of 148147440 is about 529.1328409017.

The spelling of 148147440 in words is "one hundred forty-eight million, one hundred forty-seven thousand, four hundred forty".