22452402 has 16 divisors (see below), whose sum is σ = 51319872. Its totient is φ = 6414960.

The previous prime is 22452389. The next prime is 22452403. The reversal of 22452402 is 20425422.

It is a super-2 number, since 2×22452402² = 1008220711139208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22452403) 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, 267249 + ... + 267332.

It is an arithmetic number, because the mean of its divisors is an integer number (3207492).

Almost surely, 2^22452402 is an apocalyptic number.

22452402 is an abundant number, since it is smaller than the sum of its proper divisors (28867470).

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

22452402 is a wasteful number, since it uses less digits than its factorization.

22452402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534593.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 22452402 is about 4738.3965642398. The cubic root of 22452402 is about 282.1115950865. Note that the first 3 decimals are identical.

Adding to 22452402 its reverse (20425422), we get a palindrome (42877824).

The spelling of 22452402 in words is "twenty-two million, four hundred fifty-two thousand, four hundred two".