23485428 has 18 divisors (see below), whose sum is σ = 59366034. Its totient is φ = 7828464.

The previous prime is 23485411. The next prime is 23485433. The reversal of 23485428 is 82458432.

It can be written as a sum of positive squares in only one way, i.e., 21790224 + 1695204 = 4668^2 + 1302^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 652373 = 23485428 / (2 + 3 + 4 + 8 + 5 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 23485392 and 23485401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326151 + ... + 326222.

It is an arithmetic number, because the mean of its divisors is an integer number (3298113).

Almost surely, 2^23485428 is an apocalyptic number.

It is an amenable number.

23485428 is an abundant number, since it is smaller than the sum of its proper divisors (35880606).

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

23485428 is a wasteful number, since it uses less digits than its factorization.

23485428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652383 (or 652378 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 23485428 is about 4846.1766373090. The cubic root of 23485428 is about 286.3734993373.

It can be divided in two parts, 2348 and 5428, that added together give a 5-th power (7776 = 6⁵).

The spelling of 23485428 in words is "twenty-three million, four hundred eighty-five thousand, four hundred twenty-eight".