23420472 has 32 divisors (see below), whose sum is σ = 58732800. Its totient is φ = 7782624.

The previous prime is 23420459. The next prime is 23420473. The reversal of 23420472 is 27402432.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7479 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (1835400).

Almost surely, 2^23420472 is an apocalyptic number.

It is an amenable number.

23420472 is an abundant number, since it is smaller than the sum of its proper divisors (35312328).

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

23420472 is a wasteful number, since it uses less digits than its factorization.

23420472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 23420472 is about 4839.4702189393. The cubic root of 23420472 is about 286.1092382683.

It can be divided in two parts, 234 and 20472, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 23420472 in words is "twenty-three million, four hundred twenty thousand, four hundred seventy-two".