23490330 has 16 divisors (see below), whose sum is σ = 56376864. Its totient is φ = 6264080.

The previous prime is 23490329. The next prime is 23490331. The reversal of 23490330 is 3309432.

It is an interprime number because it is at equal distance from previous prime (23490329) and next prime (23490331).

It is a self number, because there is not a number n which added to its sum of digits gives 23490330.

It is not an unprimeable number, because it can be changed into a prime (23490331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391476 + ... + 391535.

It is an arithmetic number, because the mean of its divisors is an integer number (3523554).

Almost surely, 2^23490330 is an apocalyptic number.

23490330 is an abundant number, since it is smaller than the sum of its proper divisors (32886534).

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

23490330 is a wasteful number, since it uses less digits than its factorization.

23490330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783021.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23490330 is about 4846.6823704468. The cubic root of 23490330 is about 286.3934224039.

Adding to 23490330 its reverse (3309432), we get a palindrome (26799762).

The spelling of 23490330 in words is "twenty-three million, four hundred ninety thousand, three hundred thirty".