23129782 has 16 divisors (see below), whose sum is σ = 38570112. Its totient is φ = 10330560.

The previous prime is 23129779. The next prime is 23129803. The reversal of 23129782 is 28792132.

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, 13543 + ... + 15154.

It is an arithmetic number, because the mean of its divisors is an integer number (2410632).

Almost surely, 2^23129782 is an apocalyptic number.

23129782 is a deficient number, since it is larger than the sum of its proper divisors (15440330).

23129782 is a wasteful number, since it uses less digits than its factorization.

23129782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28743.

The product of its digits is 12096, while the sum is 34.

The square root of 23129782 is about 4809.3431984004. The cubic root of 23129782 is about 284.9205975580.

The spelling of 23129782 in words is "twenty-three million, one hundred twenty-nine thousand, seven hundred eighty-two".