53438418 has 24 divisors (see below), whose sum is σ = 126309456. Its totient is φ = 16193400.

The previous prime is 53438401. The next prime is 53438423. The reversal of 53438418 is 81483435.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134748 + ... + 135143.

It is an arithmetic number, because the mean of its divisors is an integer number (5262894).

Almost surely, 2^53438418 is an apocalyptic number.

53438418 is an abundant number, since it is smaller than the sum of its proper divisors (72871038).

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

53438418 is a wasteful number, since it uses less digits than its factorization.

53438418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269910 (or 269907 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 53438418 is about 7310.1585482122. The cubic root of 53438418 is about 376.6614705038.

The spelling of 53438418 in words is "fifty-three million, four hundred thirty-eight thousand, four hundred eighteen".