23109476 has 24 divisors (see below), whose sum is σ = 43687224. Its totient is φ = 10632960.

The previous prime is 23109421. The next prime is 23109481. The reversal of 23109476 is 67490132.

It can be written as a sum of positive squares in 4 ways, for example, as 774400 + 22335076 = 880^2 + 4726^2 .

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 26666 + ... + 27518.

It is an arithmetic number, because the mean of its divisors is an integer number (1820301).

Almost surely, 2^23109476 is an apocalyptic number.

23109476 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23109476 is a deficient number, since it is larger than the sum of its proper divisors (20577748).

23109476 is a wasteful number, since it uses less digits than its factorization.

23109476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23109476 is about 4807.2316357754. The cubic root of 23109476 is about 284.8371943858.

The spelling of 23109476 in words is "twenty-three million, one hundred nine thousand, four hundred seventy-six".