22820651 has 16 divisors (see below), whose sum is σ = 27340800. Its totient is φ = 18633888.

The previous prime is 22820599. The next prime is 22820657. The reversal of 22820651 is 15602822.

It is not a de Polignac number, because 22820651 - 2²² = 18626347 is a prime.

It is a super-2 number, since 2×22820651² = 1041564224127602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22820651.

It is not an unprimeable number, because it can be changed into a prime (22820657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15326 + ... + 16748.

It is an arithmetic number, because the mean of its divisors is an integer number (1708800).

Almost surely, 2^22820651 is an apocalyptic number.

22820651 is a deficient number, since it is larger than the sum of its proper divisors (4520149).

22820651 is a wasteful number, since it uses less digits than its factorization.

22820651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 22820651 is about 4777.0965031073. The cubic root of 22820651 is about 283.6455730410.

The spelling of 22820651 in words is "twenty-two million, eight hundred twenty thousand, six hundred fifty-one".