20364724 has 24 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 9885216.

The previous prime is 20364709. The next prime is 20364739. The reversal of 20364724 is 42746302.

It is an interprime number because it is at equal distance from previous prime (20364709) and next prime (20364739).

It is a junction number, because it is equal to n+sod(n) for n = 20364692 and 20364701.

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, 27649 + ... + 28375.

It is an arithmetic number, because the mean of its divisors is an integer number (1528800).

Almost surely, 2^20364724 is an apocalyptic number.

It is an amenable number.

20364724 is a deficient number, since it is larger than the sum of its proper divisors (16326476).

20364724 is a wasteful number, since it uses less digits than its factorization.

20364724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 20364724 is about 4512.7291077573. The cubic root of 20364724 is about 273.0818540974.

The spelling of 20364724 in words is "twenty million, three hundred sixty-four thousand, seven hundred twenty-four".