20870352 has 40 divisors (see below), whose sum is σ = 59906880. Its totient is φ = 6956640.

The previous prime is 20870327. The next prime is 20870371. The reversal of 20870352 is 25307802.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23724 + ... + 24587.

It is an arithmetic number, because the mean of its divisors is an integer number (1497672).

Almost surely, 2^20870352 is an apocalyptic number.

It is an amenable number.

20870352 is an abundant number, since it is smaller than the sum of its proper divisors (39036528).

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

20870352 is a wasteful number, since it uses less digits than its factorization.

20870352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48328 (or 48316 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20870352 is about 4568.4080378180. The cubic root of 20870352 is about 275.3234848974.

The spelling of 20870352 in words is "twenty million, eight hundred seventy thousand, three hundred fifty-two".