20901488 has 10 divisors (see below), whose sum is σ = 40496664. Its totient is φ = 10450736.

The previous prime is 20901473. The next prime is 20901499. The reversal of 20901488 is 88410902.

It is a happy number.

It is a super-2 number, since 2×20901488² = 873744401228288, 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 as a sum of consecutive naturals, namely, 653156 + ... + 653187.

Almost surely, 2^20901488 is an apocalyptic number.

It is an amenable number.

20901488 is a deficient number, since it is larger than the sum of its proper divisors (19595176).

20901488 is a wasteful number, since it uses less digits than its factorization.

20901488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306351 (or 1306345 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 20901488 is about 4571.8145194222. The cubic root of 20901488 is about 275.4603331328.

The spelling of 20901488 in words is "twenty million, nine hundred one thousand, four hundred eighty-eight".