23971430 has 16 divisors (see below), whose sum is σ = 49312800. Its totient is φ = 8218752.

The previous prime is 23971421. The next prime is 23971433. The reversal of 23971430 is 3417932.

It is a junction number, because it is equal to n+sod(n) for n = 23971393 and 23971402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23971433) 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, 171155 + ... + 171294.

It is an arithmetic number, because the mean of its divisors is an integer number (3082050).

Almost surely, 2^23971430 is an apocalyptic number.

23971430 is an abundant number, since it is smaller than the sum of its proper divisors (25341370).

23971430 is a wasteful number, since it uses less digits than its factorization.

23971430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342463.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23971430 is about 4896.0627038468. The cubic root of 23971430 is about 288.3354100852.

The spelling of 23971430 in words is "twenty-three million, nine hundred seventy-one thousand, four hundred thirty".