22137738 has 32 divisors (see below), whose sum is σ = 51362304. Its totient is φ = 6229872.

The previous prime is 22137737. The next prime is 22137743. The reversal of 22137738 is 83773122.

It is a junction number, because it is equal to n+sod(n) for n = 22137699 and 22137708.

It is not an unprimeable number, because it can be changed into a prime (22137737) 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, 1120 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (1605072).

Almost surely, 2^22137738 is an apocalyptic number.

22137738 is an abundant number, since it is smaller than the sum of its proper divisors (29224566).

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

22137738 is a wasteful number, since it uses less digits than its factorization.

22137738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946.

The product of its digits is 14112, while the sum is 33.

The square root of 22137738 is about 4705.0757698469. The cubic root of 22137738 is about 280.7874855422.

The spelling of 22137738 in words is "twenty-two million, one hundred thirty-seven thousand, seven hundred thirty-eight".