20370988 has 24 divisors (see below), whose sum is σ = 39004560. Its totient is φ = 9232320.

The previous prime is 20370971. The next prime is 20370991. The reversal of 20370988 is 88907302.

It is a super-2 number, since 2×20370988² = 829954304192288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28378 + ... + 29086.

It is an arithmetic number, because the mean of its divisors is an integer number (1625190).

Almost surely, 2^20370988 is an apocalyptic number.

It is an amenable number.

20370988 is a deficient number, since it is larger than the sum of its proper divisors (18633572).

20370988 is a wasteful number, since it uses less digits than its factorization.

20370988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1375 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 20370988 is about 4513.4230911804. The cubic root of 20370988 is about 273.1098503746.

The spelling of 20370988 in words is "twenty million, three hundred seventy thousand, nine hundred eighty-eight".