152747440 has 20 divisors (see below), whose sum is σ = 355137984. Its totient is φ = 61098944.

The previous prime is 152747429. The next prime is 152747449. The reversal of 152747440 is 44747251.

It is a happy number.

152747440 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 152747396 and 152747405.

It is not an unprimeable number, because it can be changed into a prime (152747449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954592 + ... + 954751.

Almost surely, 2^152747440 is an apocalyptic number.

152747440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152747440 is an abundant number, since it is smaller than the sum of its proper divisors (202390544).

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

152747440 is a wasteful number, since it uses less digits than its factorization.

152747440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909356 (or 1909350 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 152747440 is about 12359.1035273599. The cubic root of 152747440 is about 534.5536673973.

The spelling of 152747440 in words is "one hundred fifty-two million, seven hundred forty-seven thousand, four hundred forty".