53418940 has 24 divisors (see below), whose sum is σ = 112835520. Its totient is φ = 21242688.

The previous prime is 53418929. The next prime is 53418973. The reversal of 53418940 is 4981435.

It is a junction number, because it is equal to n+sod(n) for n = 53418896 and 53418905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4260 + ... + 11179.

It is an arithmetic number, because the mean of its divisors is an integer number (4701480).

Almost surely, 2^53418940 is an apocalyptic number.

It is an amenable number.

53418940 is an abundant number, since it is smaller than the sum of its proper divisors (59416580).

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

53418940 is a wasteful number, since it uses less digits than its factorization.

53418940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15621 (or 15619 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 53418940 is about 7308.8261711440. The cubic root of 53418940 is about 376.6157012865.

The spelling of 53418940 in words is "fifty-three million, four hundred eighteen thousand, nine hundred forty".