22903940 has 24 divisors (see below), whose sum is σ = 48188952. Its totient is φ = 9144320.

The previous prime is 22903901. The next prime is 22903943. The reversal of 22903940 is 4930922.

It can be written as a sum of positive squares in 4 ways, for example, as 1982464 + 20921476 = 1408^2 + 4574^2 .

It is not an unprimeable number, because it can be changed into a prime (22903943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18212 + ... + 19428.

It is an arithmetic number, because the mean of its divisors is an integer number (2007873).

Almost surely, 2^22903940 is an apocalyptic number.

22903940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22903940 is an abundant number, since it is smaller than the sum of its proper divisors (25285012).

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

22903940 is a wasteful number, since it uses less digits than its factorization.

22903940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 22903940 is about 4785.8060972003. The cubic root of 22903940 is about 283.9902297770.

The spelling of 22903940 in words is "twenty-two million, nine hundred three thousand, nine hundred forty".