20878802 has 48 divisors (see below), whose sum is σ = 38905920. Its totient is φ = 8360352.

The previous prime is 20878789. The next prime is 20878843. The reversal of 20878802 is 20887802.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132908 + ... + 133064.

It is an arithmetic number, because the mean of its divisors is an integer number (810540).

Almost surely, 2^20878802 is an apocalyptic number.

20878802 is a deficient number, since it is larger than the sum of its proper divisors (18027118).

20878802 is a wasteful number, since it uses less digits than its factorization.

20878802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 20878802 is about 4569.3327740492. The cubic root of 20878802 is about 275.3606375935.

The spelling of 20878802 in words is "twenty million, eight hundred seventy-eight thousand, eight hundred two".