23494428 has 48 divisors (see below), whose sum is σ = 61259520. Its totient is φ = 7786800.

The previous prime is 23494411. The next prime is 23494441. The reversal of 23494428 is 82449432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23494392 and 23494401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22273 + ... + 23303.

It is an arithmetic number, because the mean of its divisors is an integer number (1276240).

Almost surely, 2^23494428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23494428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30629760).

23494428 is an abundant number, since it is smaller than the sum of its proper divisors (37765092).

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

23494428 is a wasteful number, since it uses less digits than its factorization.

23494428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1247 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 23494428 is about 4847.1051154271. The cubic root of 23494428 is about 286.4100756679.

The spelling of 23494428 in words is "twenty-three million, four hundred ninety-four thousand, four hundred twenty-eight".