52120428 has 24 divisors (see below), whose sum is σ = 122870832. Its totient is φ = 17193984.

The previous prime is 52120427. The next prime is 52120433. The reversal of 52120428 is 82402125.

It is a junction number, because it is equal to n+sod(n) for n = 52120398 and 52120407.

It is not an unprimeable number, because it can be changed into a prime (52120427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21225 + ... + 23552.

It is an arithmetic number, because the mean of its divisors is an integer number (5119618).

Almost surely, 2^52120428 is an apocalyptic number.

It is an amenable number.

52120428 is an abundant number, since it is smaller than the sum of its proper divisors (70750404).

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

52120428 is a wasteful number, since it uses less digits than its factorization.

52120428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44881 (or 44879 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52120428 is about 7219.4479013287. The cubic root of 52120428 is about 373.5390338213.

The spelling of 52120428 in words is "fifty-two million, one hundred twenty thousand, four hundred twenty-eight".