23729146 has 16 divisors (see below), whose sum is σ = 42447744. Its totient is φ = 9727344.

The previous prime is 23729143. The next prime is 23729149. The reversal of 23729146 is 64192732.

It is an interprime number because it is at equal distance from previous prime (23729143) and next prime (23729149).

It is not an unprimeable number, because it can be changed into a prime (23729143) 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, 36525 + ... + 37168.

It is an arithmetic number, because the mean of its divisors is an integer number (2652984).

Almost surely, 2^23729146 is an apocalyptic number.

23729146 is a deficient number, since it is larger than the sum of its proper divisors (18718598).

23729146 is a wasteful number, since it uses less digits than its factorization.

23729146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73725.

The product of its digits is 18144, while the sum is 34.

The square root of 23729146 is about 4871.2571272722. The cubic root of 23729146 is about 287.3606977322.

The spelling of 23729146 in words is "twenty-three million, seven hundred twenty-nine thousand, one hundred forty-six".