1156788402 has 32 divisors (see below), whose sum is σ = 2884460544. Its totient is φ = 300464400.

The previous prime is 1156788401. The next prime is 1156788439. The reversal of 1156788402 is 2048876511.

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

It is not an unprimeable number, because it can be changed into a prime (1156788401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1251474 + ... + 1252397.

It is an arithmetic number, because the mean of its divisors is an integer number (90139392).

Almost surely, 2^1156788402 is an apocalyptic number.

1156788402 is an abundant number, since it is smaller than the sum of its proper divisors (1727672142).

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

1156788402 is a wasteful number, since it uses less digits than its factorization.

1156788402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503894.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1156788402 is about 34011.5921709055. The cubic root of 1156788402 is about 1049.7469993611.

The spelling of 1156788402 in words is "one billion, one hundred fifty-six million, seven hundred eighty-eight thousand, four hundred two".