53400918 has 32 divisors (see below), whose sum is σ = 108573696. Its totient is φ = 17507808.

The previous prime is 53400911. The next prime is 53400923. The reversal of 53400918 is 81900435.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53400911) 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, 142980 + ... + 143352.

It is an arithmetic number, because the mean of its divisors is an integer number (3392928).

Almost surely, 2^53400918 is an apocalyptic number.

53400918 is an abundant number, since it is smaller than the sum of its proper divisors (55172778).

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

53400918 is a wasteful number, since it uses less digits than its factorization.

53400918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 53400918 is about 7307.5931742264. The cubic root of 53400918 is about 376.5733434536.

The spelling of 53400918 in words is "fifty-three million, four hundred thousand, nine hundred eighteen".