23212940 has 48 divisors (see below), whose sum is σ = 50621760. Its totient is φ = 8935680.

The previous prime is 23212919. The next prime is 23212961. The reversal of 23212940 is 4921232.

It is an interprime number because it is at equal distance from previous prime (23212919) and next prime (23212961).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64481 + ... + 64839.

It is an arithmetic number, because the mean of its divisors is an integer number (1054620).

Almost surely, 2^23212940 is an apocalyptic number.

23212940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23212940 is an abundant number, since it is smaller than the sum of its proper divisors (27408820).

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

23212940 is a wasteful number, since it uses less digits than its factorization.

23212940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23212940 is about 4817.9809049020. The cubic root of 23212940 is about 285.2616454302.

The spelling of 23212940 in words is "twenty-three million, two hundred twelve thousand, nine hundred forty".