22406742 has 12 divisors (see below), whose sum is σ = 48547980. Its totient is φ = 7468908.

The previous prime is 22406717. The next prime is 22406753. The reversal of 22406742 is 24760422.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622392 + ... + 622427.

It is an arithmetic number, because the mean of its divisors is an integer number (4045665).

Almost surely, 2^22406742 is an apocalyptic number.

22406742 is an abundant number, since it is smaller than the sum of its proper divisors (26141238).

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

22406742 is a wasteful number, since it uses less digits than its factorization.

22406742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244827 (or 1244824 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22406742 is about 4733.5760266420. The cubic root of 22406742 is about 281.9202279266.

The spelling of 22406742 in words is "twenty-two million, four hundred six thousand, seven hundred forty-two".