9118400436 has 18 divisors (see below), whose sum is σ = 23049290082. Its totient is φ = 3039466800.

The previous prime is 9118400413. The next prime is 9118400461. The reversal of 9118400436 is 6340048119.

It can be written as a sum of positive squares in only one way, i.e., 9112611600 + 5788836 = 95460^2 + 2406^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×9118400436² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 253288901 = 9118400436 / (9 + 1 + 1 + 8 + 4 + 0 + 0 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 9118400436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126644415 + ... + 126644486.

Almost surely, 2^9118400436 is an apocalyptic number.

It is an amenable number.

9118400436 is an abundant number, since it is smaller than the sum of its proper divisors (13930889646).

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

9118400436 is a wasteful number, since it uses less digits than its factorization.

9118400436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253288911 (or 253288906 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 9118400436 is about 95490.3159278468. The cubic root of 9118400436 is about 2089.1656992207.

The spelling of 9118400436 in words is "nine billion, one hundred eighteen million, four hundred thousand, four hundred thirty-six".