23070400 has 42 divisors (see below), whose sum is σ = 56771540. Its totient is φ = 9227520.

The previous prime is 23070391. The next prime is 23070407. The reversal of 23070400 is 407032.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (23070407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5610 + ... + 8809.

Almost surely, 2^23070400 is an apocalyptic number.

23070400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23070400 is an abundant number, since it is smaller than the sum of its proper divisors (33701140).

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

23070400 is a wasteful number, since it uses less digits than its factorization.

23070400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14441 (or 14426 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 23070400 is about 4803.1656227950. The cubic root of 23070400 is about 284.6765593063.

Adding to 23070400 its reverse (407032), we get a palindrome (23477432).

The spelling of 23070400 in words is "twenty-three million, seventy thousand, four hundred".