23433240 has 32 divisors (see below), whose sum is σ = 70300080. Its totient is φ = 6248832.

The previous prime is 23433239. The next prime is 23433253. The reversal of 23433240 is 4233432.

It is a congruent number.

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, 97519 + ... + 97758.

Almost surely, 2^23433240 is an apocalyptic number.

23433240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23433240 is an abundant number, since it is smaller than the sum of its proper divisors (46866840).

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

23433240 is a wasteful number, since it uses less digits than its factorization.

23433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195291 (or 195287 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 23433240 is about 4840.7891918570. The cubic root of 23433240 is about 286.1612209827.

Adding to 23433240 its reverse (4233432), we get a palindrome (27666672).

The spelling of 23433240 in words is "twenty-three million, four hundred thirty-three thousand, two hundred forty".