118440455 has 24 divisors (see below), whose sum is σ = 169828512. Its totient is φ = 77673024.

The previous prime is 118440451. The next prime is 118440481. The reversal of 118440455 is 554044811.

It is not a de Polignac number, because 118440455 - 2² = 118440451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118440451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15317 + ... + 21713.

It is an arithmetic number, because the mean of its divisors is an integer number (7076188).

Almost surely, 2^118440455 is an apocalyptic number.

118440455 is a deficient number, since it is larger than the sum of its proper divisors (51388057).

118440455 is an equidigital number, since it uses as much as digits as its factorization.

118440455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455 (or 6432 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 118440455 is about 10883.0351924452. The cubic root of 118440455 is about 491.0963304592.

The spelling of 118440455 in words is "one hundred eighteen million, four hundred forty thousand, four hundred fifty-five".