43125402400 has 72 divisors (see below), whose sum is σ = 105309173844. Its totient is φ = 17245363200.

The previous prime is 43125402347. The next prime is 43125402407. The reversal of 43125402400 is 420452134.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4115992336 + 39009410064 = 64156^2 + 197508^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (43125402407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4780294 + ... + 4789306.

Almost surely, 2^43125402400 is an apocalyptic number.

43125402400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43125402400 is an abundant number, since it is smaller than the sum of its proper divisors (62183771444).

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

43125402400 is a wasteful number, since it uses less digits than its factorization.

43125402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014 (or 15001 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 43125402400 its reverse (420452134), we get a palindrome (43545854534).

The spelling of 43125402400 in words is "forty-three billion, one hundred twenty-five million, four hundred two thousand, four hundred".