20713370 has 16 divisors (see below), whose sum is σ = 38078208. Its totient is φ = 8108880.

The previous prime is 20713369. The next prime is 20713373. The reversal of 20713370 is 7331702.

It is not an unprimeable number, because it can be changed into a prime (20713373) by changing a digit.

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, 21566 + ... + 22505.

It is an arithmetic number, because the mean of its divisors is an integer number (2379888).

Almost surely, 2^20713370 is an apocalyptic number.

20713370 is a deficient number, since it is larger than the sum of its proper divisors (17364838).

20713370 is a wasteful number, since it uses less digits than its factorization.

20713370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44125.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 20713370 is about 4551.1943487397. The cubic root of 20713370 is about 274.6314401546.

The spelling of 20713370 in words is "twenty million, seven hundred thirteen thousand, three hundred seventy".