23409474 has 16 divisors (see below), whose sum is σ = 51075360. Its totient is φ = 7093760.

The previous prime is 23409473. The next prime is 23409479. The reversal of 23409474 is 47490432.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (23409473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177279 + ... + 177410.

It is an arithmetic number, because the mean of its divisors is an integer number (3192210).

Almost surely, 2^23409474 is an apocalyptic number.

23409474 is an abundant number, since it is smaller than the sum of its proper divisors (27665886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23409474 is a wasteful number, since it uses less digits than its factorization.

23409474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354705.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 23409474 is about 4838.3338041107. Note that the first 3 decimals coincide. The cubic root of 23409474 is about 286.0644466565.

The spelling of 23409474 in words is "twenty-three million, four hundred nine thousand, four hundred seventy-four".