20602404 has 24 divisors (see below), whose sum is σ = 53413920. Its totient is φ = 6867432.

The previous prime is 20602357. The next prime is 20602409. The reversal of 20602404 is 40420602.

20602404 is a `hidden beast` number, since 20 + 602 + 40 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20602409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95274 + ... + 95489.

It is an arithmetic number, because the mean of its divisors is an integer number (2225580).

Almost surely, 2^20602404 is an apocalyptic number.

It is an amenable number.

20602404 is an abundant number, since it is smaller than the sum of its proper divisors (32811516).

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

20602404 is a wasteful number, since it uses less digits than its factorization.

20602404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190776 (or 190768 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20602404 is about 4538.9871116803. The cubic root of 20602404 is about 274.1401417825.

The spelling of 20602404 in words is "twenty million, six hundred two thousand, four hundred four".