22130654 has 48 divisors (see below), whose sum is σ = 43092000. Its totient is φ = 8438976.

The previous prime is 22130653. The next prime is 22130659. The reversal of 22130654 is 45603122.

22130654 = 378² + 379² + ... + 493².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36647 + ... + 37245.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 2^22130654 is an apocalyptic number.

22130654 is a deficient number, since it is larger than the sum of its proper divisors (20961346).

22130654 is a wasteful number, since it uses less digits than its factorization.

22130654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22130654 is about 4704.3229055838. The cubic root of 22130654 is about 280.7575320039.

Adding to 22130654 its reverse (45603122), we get a palindrome (67733776).

The spelling of 22130654 in words is "twenty-two million, one hundred thirty thousand, six hundred fifty-four".