23494240 has 96 divisors (see below), whose sum is σ = 69237504. Its totient is φ = 7319040.

The previous prime is 23494193. The next prime is 23494253. The reversal of 23494240 is 4249432.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 23494199 and 23494208.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11367 + ... + 13273.

It is an arithmetic number, because the mean of its divisors is an integer number (721224).

Almost surely, 2^23494240 is an apocalyptic number.

23494240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23494240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34618752).

23494240 is an abundant number, since it is smaller than the sum of its proper divisors (45743264).

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

23494240 is a wasteful number, since it uses less digits than its factorization.

23494240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1932 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 23494240 is about 4847.0857223697. The cubic root of 23494240 is about 286.4093117245.

The spelling of 23494240 in words is "twenty-three million, four hundred ninety-four thousand, two hundred forty".