23270428 has 12 divisors (see below), whose sum is σ = 40931352. Its totient is φ = 11575760.

The previous prime is 23270419. The next prime is 23270437. The reversal of 23270428 is 82407232.

It is an interprime number because it is at equal distance from previous prime (23270419) and next prime (23270437).

It is a junction number, because it is equal to n+sod(n) for n = 23270396 and 23270405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13978 + ... + 15553.

It is an arithmetic number, because the mean of its divisors is an integer number (3410946).

Almost surely, 2^23270428 is an apocalyptic number.

It is an amenable number.

23270428 is a deficient number, since it is larger than the sum of its proper divisors (17660924).

23270428 is a wasteful number, since it uses less digits than its factorization.

23270428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29732 (or 29730 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23270428 is about 4823.9432003290. The cubic root of 23270428 is about 285.4969395137.

The spelling of 23270428 in words is "twenty-three million, two hundred seventy thousand, four hundred twenty-eight".