20078476 has 12 divisors (see below), whose sum is σ = 38331720. Its totient is φ = 9126560.

The previous prime is 20078453. The next prime is 20078507. The reversal of 20078476 is 67487002.

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 3 ways as a sum of consecutive naturals, for example, 228121 + ... + 228208.

It is an arithmetic number, because the mean of its divisors is an integer number (3194310).

Almost surely, 2^20078476 is an apocalyptic number.

It is an amenable number.

20078476 is a deficient number, since it is larger than the sum of its proper divisors (18253244).

20078476 is a wasteful number, since it uses less digits than its factorization.

20078476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456344 (or 456342 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 20078476 is about 4480.9012486329. The cubic root of 20078476 is about 271.7963260446.

The spelling of 20078476 in words is "twenty million, seventy-eight thousand, four hundred seventy-six".