20024639004 has 24 divisors (see below), whose sum is σ = 46728355968. Its totient is φ = 6674279920.

The previous prime is 20024638993. The next prime is 20024639027. The reversal of 20024639004 is 40093642002.

It is a super-2 number, since 2×20024639004² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76369 + ... + 214199.

It is an arithmetic number, because the mean of its divisors is an integer number (1947014832).

Almost surely, 2^20024639004 is an apocalyptic number.

It is an amenable number.

20024639004 is an abundant number, since it is smaller than the sum of its proper divisors (26703716964).

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

20024639004 is a wasteful number, since it uses less digits than its factorization.

20024639004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149945 (or 149943 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 20024639004 in words is "twenty billion, twenty-four million, six hundred thirty-nine thousand, four".