20276788 has 24 divisors (see below), whose sum is σ = 41384000. Its totient is φ = 8689464.

The previous prime is 20276761. The next prime is 20276807. The reversal of 20276788 is 88767202.

It is a super-2 number, since 2×20276788² = 822296263193888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20276788.

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, 6018 + ... + 8761.

Almost surely, 2^20276788 is an apocalyptic number.

20276788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20276788 is an abundant number, since it is smaller than the sum of its proper divisors (21107212).

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

20276788 is a wasteful number, since it uses less digits than its factorization.

20276788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804 (or 14788 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 20276788 is about 4502.9754607370. The cubic root of 20276788 is about 272.6882261540.

The spelling of 20276788 in words is "twenty million, two hundred seventy-six thousand, seven hundred eighty-eight".