23494440 has 32 divisors (see below), whose sum is σ = 70483680. Its totient is φ = 6265152.

The previous prime is 23494411. The next prime is 23494441. The reversal of 23494440 is 4449432.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23494398 and 23494407.

It is not an unprimeable number, because it can be changed into a prime (23494441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97774 + ... + 98013.

It is an arithmetic number, because the mean of its divisors is an integer number (2202615).

Almost surely, 2^23494440 is an apocalyptic number.

23494440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23494440 is an abundant number, since it is smaller than the sum of its proper divisors (46989240).

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

23494440 is a wasteful number, since it uses less digits than its factorization.

23494440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195801 (or 195797 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 23494440 is about 4847.1063532792. The cubic root of 23494440 is about 286.4101244301.

The spelling of 23494440 in words is "twenty-three million, four hundred ninety-four thousand, four hundred forty".