22379240 has 32 divisors (see below), whose sum is σ = 54227880. Its totient is φ = 8262912.

The previous prime is 22379237. The next prime is 22379261. The reversal of 22379240 is 4297322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6522916 + 15856324 = 2554^2 + 3982^2 .

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, 20999 + ... + 22038.

Almost surely, 2^22379240 is an apocalyptic number.

22379240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22379240 is an abundant number, since it is smaller than the sum of its proper divisors (31848640).

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

22379240 is a wasteful number, since it uses less digits than its factorization.

22379240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43061 (or 43057 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 22379240 is about 4730.6701428022. The cubic root of 22379240 is about 281.8048378887.

The spelling of 22379240 in words is "twenty-two million, three hundred seventy-nine thousand, two hundred forty".