20404088 has 32 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 9924960.

The previous prime is 20404049. The next prime is 20404093. The reversal of 20404088 is 88040402.

It is a super-2 number, since 2×20404088² = 832653614223488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65453 + ... + 65763.

It is an arithmetic number, because the mean of its divisors is an integer number (1228500).

Almost surely, 2^20404088 is an apocalyptic number.

It is an amenable number.

20404088 is a deficient number, since it is larger than the sum of its proper divisors (18907912).

20404088 is a wasteful number, since it uses less digits than its factorization.

20404088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20404088 is about 4517.0884427914. The cubic root of 20404088 is about 273.2576920708.

The spelling of 20404088 in words is "twenty million, four hundred four thousand, eighty-eight".