53040428 has 24 divisors (see below), whose sum is σ = 106439424. Its totient is φ = 22654800.

The previous prime is 53040397. The next prime is 53040443. The reversal of 53040428 is 82404035.

It is a junction number, because it is equal to n+sod(n) for n = 53040397 and 53040406.

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, 5663 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (4434976).

Almost surely, 2^53040428 is an apocalyptic number.

It is an amenable number.

53040428 is an abundant number, since it is smaller than the sum of its proper divisors (53398996).

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

53040428 is a wasteful number, since it uses less digits than its factorization.

53040428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413 (or 6411 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 53040428 is about 7282.8859664284. The cubic root of 53040428 is about 375.7240600287.

The spelling of 53040428 in words is "fifty-three million, forty thousand, four hundred twenty-eight".