22402554 has 16 divisors (see below), whose sum is σ = 44913792. Its totient is φ = 7449408.

The previous prime is 22402547. The next prime is 22402561. The reversal of 22402554 is 45520422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22402547) and next prime (22402561).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1714 + ... + 6909.

It is an arithmetic number, because the mean of its divisors is an integer number (2807112).

Almost surely, 2^22402554 is an apocalyptic number.

22402554 is an abundant number, since it is smaller than the sum of its proper divisors (22511238).

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

22402554 is a wasteful number, since it uses less digits than its factorization.

22402554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 22402554 is about 4733.1336342850. The cubic root of 22402554 is about 281.9026624474.

Adding to 22402554 its reverse (45520422), we get a palindrome (67922976).

The spelling of 22402554 in words is "twenty-two million, four hundred two thousand, five hundred fifty-four".