20374288 has 20 divisors (see below), whose sum is σ = 43064208. Its totient is φ = 9260960.

The previous prime is 20374267. The next prime is 20374301. The reversal of 20374288 is 88247302.

It is a super-2 number, since 2×20374288² = 830223223013888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57706 + ... + 58057.

Almost surely, 2^20374288 is an apocalyptic number.

It is an amenable number.

20374288 is an abundant number, since it is smaller than the sum of its proper divisors (22689920).

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

20374288 is a wasteful number, since it uses less digits than its factorization.

20374288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115782 (or 115776 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 20374288 is about 4513.7886525623. The cubic root of 20374288 is about 273.1245970632.

The spelling of 20374288 in words is "twenty million, three hundred seventy-four thousand, two hundred eighty-eight".