22130649 has 12 divisors (see below), whose sum is σ = 33649200. Its totient is φ = 13977144.

The previous prime is 22130609. The next prime is 22130653. The reversal of 22130649 is 94603122.

22130649 is a `hidden beast` number, since 2 + 2 + 13 + 0 + 649 = 666.

It is not a de Polignac number, because 22130649 - 2⁹ = 22130137 is a prime.

It is a super-2 number, since 2×22130649² = 979531250322402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22130609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64539 + ... + 64880.

It is an arithmetic number, because the mean of its divisors is an integer number (2804100).

Almost surely, 2^22130649 is an apocalyptic number.

It is an amenable number.

22130649 is a deficient number, since it is larger than the sum of its proper divisors (11518551).

22130649 is a wasteful number, since it uses less digits than its factorization.

22130649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129444 (or 129441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22130649 is about 4704.3223741576. The cubic root of 22130649 is about 280.7575108599.

The spelling of 22130649 in words is "twenty-two million, one hundred thirty thousand, six hundred forty-nine".