9157903440 has 160 divisors (see below), whose sum is σ = 33491951616. Its totient is φ = 2025699840.

The previous prime is 9157903429. The next prime is 9157903463. The reversal of 9157903440 is 443097519.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 9157903392 and 9157903401.

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, 35842 + ... + 140001.

Almost surely, 2^9157903440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9157903440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16745975808).

9157903440 is an abundant number, since it is smaller than the sum of its proper divisors (24334048176).

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

9157903440 is a wasteful number, since it uses less digits than its factorization.

9157903440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175897 (or 175891 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 9157903440 is about 95696.9353741278. The cubic root of 9157903440 is about 2092.1782681594.

The spelling of 9157903440 in words is "nine billion, one hundred fifty-seven million, nine hundred three thousand, four hundred forty".