52347420 has 72 divisors (see below), whose sum is σ = 168137424. Its totient is φ = 13137408.

The previous prime is 52347419. The next prime is 52347433. The reversal of 52347420 is 2474325.

52347420 is a `hidden beast` number, since 5 + 234 + 7 + 420 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5494 + ... + 11613.

It is an arithmetic number, because the mean of its divisors is an integer number (2335242).

Almost surely, 2^52347420 is an apocalyptic number.

It is an amenable number.

52347420 is an abundant number, since it is smaller than the sum of its proper divisors (115790004).

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

52347420 is a wasteful number, since it uses less digits than its factorization.

52347420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139 (or 17134 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 52347420 is about 7235.1516915680. The cubic root of 52347420 is about 374.0805206633.

The spelling of 52347420 in words is "fifty-two million, three hundred forty-seven thousand, four hundred twenty".