23402405400 has 96 divisors (see below), whose sum is σ = 79142702400. Its totient is φ = 5673308800.

The previous prime is 23402405381. The next prime is 23402405417. The reversal of 23402405400 is 450420432.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1766310 + ... + 1779509.

It is an arithmetic number, because the mean of its divisors is an integer number (824403150).

Almost surely, 2^23402405400 is an apocalyptic number.

23402405400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23402405400 is an abundant number, since it is smaller than the sum of its proper divisors (55740297000).

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

23402405400 is a wasteful number, since it uses less digits than its factorization.

23402405400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545849 (or 3545840 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 23402405400 its reverse (450420432), we get a palindrome (23852825832).

The spelling of 23402405400 in words is "twenty-three billion, four hundred two million, four hundred five thousand, four hundred".