23342040 has 64 divisors (see below), whose sum is σ = 77810400. Its totient is φ = 6224256.

The previous prime is 23342029. The next prime is 23342047. The reversal of 23342040 is 4024332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23342047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9727 + ... + 11886.

Almost surely, 2^23342040 is an apocalyptic number.

23342040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23342040 is an abundant number, since it is smaller than the sum of its proper divisors (54468360).

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

23342040 is a wasteful number, since it uses less digits than its factorization.

23342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21633 (or 21623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23342040 is about 4831.3600569612. The cubic root of 23342040 is about 285.7895006739.

Adding to 23342040 its reverse (4024332), we get a palindrome (27366372).

The spelling of 23342040 in words is "twenty-three million, three hundred forty-two thousand, forty".