52970140 has 12 divisors (see below), whose sum is σ = 111237336. Its totient is φ = 21188048.

The previous prime is 52970131. The next prime is 52970213. The reversal of 52970140 is 4107925.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 52970099 and 52970108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324234 + ... + 1324273.

It is an arithmetic number, because the mean of its divisors is an integer number (9269778).

Almost surely, 2^52970140 is an apocalyptic number.

It is an amenable number.

52970140 is an abundant number, since it is smaller than the sum of its proper divisors (58267196).

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

52970140 is a wasteful number, since it uses less digits than its factorization.

52970140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648516 (or 2648514 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 52970140 is about 7278.0588071271. The cubic root of 52970140 is about 375.5580195962.

The spelling of 52970140 in words is "fifty-two million, nine hundred seventy thousand, one hundred forty".