20352988 has 24 divisors (see below), whose sum is σ = 37044224. Its totient is φ = 9774000.

The previous prime is 20352973. The next prime is 20352991. The reversal of 20352988 is 88925302.

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, 18181 + ... + 19267.

Almost surely, 2^20352988 is an apocalyptic number.

It is an amenable number.

20352988 is a deficient number, since it is larger than the sum of its proper divisors (16691236).

20352988 is a wasteful number, since it uses less digits than its factorization.

20352988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 20352988 is about 4511.4285985705. The cubic root of 20352988 is about 273.0293858442.

The spelling of 20352988 in words is "twenty million, three hundred fifty-two thousand, nine hundred eighty-eight".