20256276 has 24 divisors (see below), whose sum is σ = 47355840. Its totient is φ = 6739072.

The previous prime is 20256263. The next prime is 20256281. The reversal of 20256276 is 67265202.

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, 6460 + ... + 9068.

It is an arithmetic number, because the mean of its divisors is an integer number (1973160).

Almost surely, 2^20256276 is an apocalyptic number.

It is an amenable number.

20256276 is an abundant number, since it is smaller than the sum of its proper divisors (27099564).

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

20256276 is a wasteful number, since it uses less digits than its factorization.

20256276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263 (or 3261 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20256276 is about 4500.6972793113. The cubic root of 20256276 is about 272.5962446554.

The spelling of 20256276 in words is "twenty million, two hundred fifty-six thousand, two hundred seventy-six".