23445400 has 48 divisors (see below), whose sum is σ = 59471640. Its totient is φ = 8524800.

The previous prime is 23445379. The next prime is 23445413. The reversal of 23445400 is 454432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3129 + ... + 7528.

Almost surely, 2^23445400 is an apocalyptic number.

23445400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23445400 is an abundant number, since it is smaller than the sum of its proper divisors (36026240).

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

23445400 is a wasteful number, since it uses less digits than its factorization.

23445400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684 (or 10675 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 23445400 is about 4842.0450225086. The cubic root of 23445400 is about 286.2107107775.

Adding to 23445400 its reverse (454432), we get a palindrome (23899832).

It can be divided in two parts, 2344 and 5400, that added together give a square (7744 = 88²).

The spelling of 23445400 in words is "twenty-three million, four hundred forty-five thousand, four hundred".