20252976 has 40 divisors (see below), whose sum is σ = 53185584. Its totient is φ = 6639360.

The previous prime is 20252959. The next prime is 20252983. The reversal of 20252976 is 67925202.

20252976 = 780² + 781² + ... + 811².

It is a happy 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, 531 + ... + 6386.

Almost surely, 2^20252976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20252976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26592792).

20252976 is an abundant number, since it is smaller than the sum of its proper divisors (32932608).

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

20252976 is a wasteful number, since it uses less digits than its factorization.

20252976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6989 (or 6983 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20252976 is about 4500.3306545186. The cubic root of 20252976 is about 272.5814407421.

The spelling of 20252976 in words is "twenty million, two hundred fifty-two thousand, nine hundred seventy-six".