23467990 has 128 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 6635520.

The previous prime is 23467943. The next prime is 23467991. The reversal of 23467990 is 9976432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23467991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 572370 + ... + 572410.

It is an arithmetic number, because the mean of its divisors is an integer number (452466).

Almost surely, 2^23467990 is an apocalyptic number.

23467990 is an abundant number, since it is smaller than the sum of its proper divisors (34447658).

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

23467990 is a wasteful number, since it uses less digits than its factorization.

23467990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 23467990 is about 4844.3771529475. The cubic root of 23467990 is about 286.3026040634.

The spelling of 23467990 in words is "twenty-three million, four hundred sixty-seven thousand, nine hundred ninety".