22372642 has 32 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 10378368.

The previous prime is 22372627. The next prime is 22372643. The reversal of 22372642 is 24627322.

It is a super-2 number, since 2×22372642² = 1001070220120328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22372642.

It is not an unprimeable number, because it can be changed into a prime (22372643) 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, 251334 + ... + 251422.

It is an arithmetic number, because the mean of its divisors is an integer number (1128600).

Almost surely, 2^22372642 is an apocalyptic number.

22372642 is a deficient number, since it is larger than the sum of its proper divisors (13742558).

22372642 is a wasteful number, since it uses less digits than its factorization.

22372642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 8064, while the sum is 28.

The square root of 22372642 is about 4729.9727271941. The cubic root of 22372642 is about 281.7771406258. Note that the first 3 decimals are identical.

Adding to 22372642 its reverse (24627322), we get a palindrome (46999964).

The spelling of 22372642 in words is "twenty-two million, three hundred seventy-two thousand, six hundred forty-two".