20583772 has 12 divisors (see below), whose sum is σ = 39296376. Its totient is φ = 9356240.

The previous prime is 20583709. The next prime is 20583809. The reversal of 20583772 is 27738502.

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, 233863 + ... + 233950.

It is an arithmetic number, because the mean of its divisors is an integer number (3274698).

Almost surely, 2^20583772 is an apocalyptic number.

20583772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20583772 is a deficient number, since it is larger than the sum of its proper divisors (18712604).

20583772 is a wasteful number, since it uses less digits than its factorization.

20583772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467828 (or 467826 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 20583772 is about 4536.9342071491. The cubic root of 20583772 is about 274.0574763542.

The spelling of 20583772 in words is "twenty million, five hundred eighty-three thousand, seven hundred seventy-two".