20712374 has 16 divisors (see below), whose sum is σ = 32601312. Its totient is φ = 9850368.

The previous prime is 20712353. The next prime is 20712403. The reversal of 20712374 is 47321702.

It is a Curzon number.

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, 7712 + ... + 10044.

It is an arithmetic number, because the mean of its divisors is an integer number (2037582).

Almost surely, 2^20712374 is an apocalyptic number.

20712374 is a deficient number, since it is larger than the sum of its proper divisors (11888938).

20712374 is a wasteful number, since it uses less digits than its factorization.

20712374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20712374 is about 4551.0849255974. The cubic root of 20712374 is about 274.6270382103.

The spelling of 20712374 in words is "twenty million, seven hundred twelve thousand, three hundred seventy-four".