23381630 has 32 divisors (see below), whose sum is σ = 45152640. Its totient is φ = 8686080.

The previous prime is 23381629. The next prime is 23381663. The reversal of 23381630 is 3618332.

It is a self number, because there is not a number n which added to its sum of digits gives 23381630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12560 + ... + 14300.

It is an arithmetic number, because the mean of its divisors is an integer number (1411020).

Almost surely, 2^23381630 is an apocalyptic number.

23381630 is a deficient number, since it is larger than the sum of its proper divisors (21771010).

23381630 is a wasteful number, since it uses less digits than its factorization.

23381630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23381630 is about 4835.4555111179. The cubic root of 23381630 is about 285.9509834983.

Adding to 23381630 its reverse (3618332), we get a palindrome (26999962).

The spelling of 23381630 in words is "twenty-three million, three hundred eighty-one thousand, six hundred thirty".