22447930 has 16 divisors (see below), whose sum is σ = 42533280. Its totient is φ = 8506512.

The previous prime is 22447927. The next prime is 22447933. The reversal of 22447930 is 3974422.

It is an interprime number because it is at equal distance from previous prime (22447927) and next prime (22447933).

It is a super-2 number, since 2×22447930² = 1007819122569800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22447892 and 22447901.

It is not an unprimeable number, because it can be changed into a prime (22447933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58884 + ... + 59263.

It is an arithmetic number, because the mean of its divisors is an integer number (2658330).

Almost surely, 2^22447930 is an apocalyptic number.

22447930 is a deficient number, since it is larger than the sum of its proper divisors (20085350).

22447930 is a wasteful number, since it uses less digits than its factorization.

22447930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118173.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 22447930 is about 4737.9246511527. The cubic root of 22447930 is about 282.0928638045.

The spelling of 22447930 in words is "twenty-two million, four hundred forty-seven thousand, nine hundred thirty".