20378604 has 12 divisors (see below), whose sum is σ = 47550104. Its totient is φ = 6792864.

The previous prime is 20378593. The next prime is 20378623. The reversal of 20378604 is 40687302.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849097 + ... + 849120.

Almost surely, 2^20378604 is an apocalyptic number.

It is an amenable number.

20378604 is an abundant number, since it is smaller than the sum of its proper divisors (27171500).

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

20378604 is a wasteful number, since it uses less digits than its factorization.

20378604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698224 (or 1698222 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20378604 is about 4514.2667178624. The cubic root of 20378604 is about 273.1438815413.

The spelling of 20378604 in words is "twenty million, three hundred seventy-eight thousand, six hundred four".