22631430 has 16 divisors (see below), whose sum is σ = 54315504. Its totient is φ = 6035040.

The previous prime is 22631423. The next prime is 22631431. The reversal of 22631430 is 3413622.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22631397 and 22631406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22631431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377161 + ... + 377220.

It is an arithmetic number, because the mean of its divisors is an integer number (3394719).

Almost surely, 2^22631430 is an apocalyptic number.

22631430 is an abundant number, since it is smaller than the sum of its proper divisors (31684074).

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

22631430 is a wasteful number, since it uses less digits than its factorization.

22631430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754391.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22631430 is about 4757.2502561879. The cubic root of 22631430 is about 282.8594323280.

The spelling of 22631430 in words is "twenty-two million, six hundred thirty-one thousand, four hundred thirty".