22237404 has 24 divisors (see below), whose sum is σ = 59299968. Its totient is φ = 6353520.

The previous prime is 22237399. The next prime is 22237409. The reversal of 22237404 is 40473222.

It is an interprime number because it is at equal distance from previous prime (22237399) and next prime (22237409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22237409) 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, 132282 + ... + 132449.

It is an arithmetic number, because the mean of its divisors is an integer number (2470832).

Almost surely, 2^22237404 is an apocalyptic number.

It is an amenable number.

22237404 is an abundant number, since it is smaller than the sum of its proper divisors (37062564).

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

22237404 is a wasteful number, since it uses less digits than its factorization.

22237404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264745 (or 264743 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 22237404 is about 4715.6552036806. The cubic root of 22237404 is about 281.2082312293.

The spelling of 22237404 in words is "twenty-two million, two hundred thirty-seven thousand, four hundred four".