23393090 has 24 divisors (see below), whose sum is σ = 48983292. Its totient is φ = 8020320.

The previous prime is 23393059. The next prime is 23393101. The reversal of 23393090 is 9039332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18774889 + 4618201 = 4333^2 + 2149^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23381 + ... + 24360.

Almost surely, 2^23393090 is an apocalyptic number.

23393090 is an abundant number, since it is smaller than the sum of its proper divisors (25590202).

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

23393090 is a wasteful number, since it uses less digits than its factorization.

23393090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47762 (or 47755 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 23393090 is about 4836.6403628965. The cubic root of 23393090 is about 285.9976934301.

The spelling of 23393090 in words is "twenty-three million, three hundred ninety-three thousand, ninety".