20268004 has 9 divisors (see below), whose sum is σ = 35484771. Its totient is φ = 10129500.

The previous prime is 20267987. The next prime is 20268011. The reversal of 20268004 is 40086202.

The square root of 20268004 is 4502.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×20268004² = 821583972288032, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7879 + ... + 10129.

Almost surely, 2^20268004 is an apocalyptic number.

20268004 is the 4502-nd square number.

It is an amenable number.

20268004 is a deficient number, since it is larger than the sum of its proper divisors (15216767).

20268004 is an frugal number, since it uses more digits than its factorization.

20268004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The cubic root of 20268004 is about 272.6488438589.

The spelling of 20268004 in words is "twenty million, two hundred sixty-eight thousand, four".