1157018478 has 48 divisors (see below), whose sum is σ = 2936559744. Its totient is φ = 300523440.

The previous prime is 1157018459. The next prime is 1157018491. The reversal of 1157018478 is 8748107511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175650 + ... + 182117.

It is an arithmetic number, because the mean of its divisors is an integer number (61178328).

Almost surely, 2^1157018478 is an apocalyptic number.

1157018478 is an abundant number, since it is smaller than the sum of its proper divisors (1779541266).

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

1157018478 is a wasteful number, since it uses less digits than its factorization.

1157018478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357797 (or 357790 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 42.

The square root of 1157018478 is about 34014.9743201432. The cubic root of 1157018478 is about 1049.8165901868.

The spelling of 1157018478 in words is "one billion, one hundred fifty-seven million, eighteen thousand, four hundred seventy-eight".