40420204 has 12 divisors (see below), whose sum is σ = 77165928. Its totient is φ = 18372800.

The previous prime is 40420157. The next prime is 40420231. The reversal of 40420204 is 40202404.

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, 459277 + ... + 459364.

It is an arithmetic number, because the mean of its divisors is an integer number (6430494).

Almost surely, 2^40420204 is an apocalyptic number.

40420204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40420204 is a deficient number, since it is larger than the sum of its proper divisors (36745724).

40420204 is a wasteful number, since it uses less digits than its factorization.

40420204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918656 (or 918654 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 40420204 is about 6357.6885736878. The cubic root of 40420204 is about 343.1885846820.

Adding to 40420204 its reverse (40202404), we get a palindrome (80622608).

The spelling of 40420204 in words is "forty million, four hundred twenty thousand, two hundred four".