20708464 has 40 divisors (see below), whose sum is σ = 47854080. Its totient is φ = 8488128.

The previous prime is 20708453. The next prime is 20708473. The reversal of 20708464 is 46480702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444 + ... + 6595.

It is an arithmetic number, because the mean of its divisors is an integer number (1196352).

Almost surely, 2^20708464 is an apocalyptic number.

It is an amenable number.

20708464 is an abundant number, since it is smaller than the sum of its proper divisors (27145616).

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

20708464 is a wasteful number, since it uses less digits than its factorization.

20708464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8071 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20708464 is about 4550.6553374212. The cubic root of 20708464 is about 274.6097561210.

The spelling of 20708464 in words is "twenty million, seven hundred eight thousand, four hundred sixty-four".