43220460400 has 240 divisors, whose sum is σ = 116103068928. Its totient is φ = 15353856000.

The previous prime is 43220460389. The next prime is 43220460457. The reversal of 43220460400 is 406402234.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31755720 + ... + 31757080.

Almost surely, 2^43220460400 is an apocalyptic number.

43220460400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43220460400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58051534464).

43220460400 is an abundant number, since it is smaller than the sum of its proper divisors (72882608528).

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

43220460400 is a wasteful number, since it uses less digits than its factorization.

43220460400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 43220460400 its reverse (406402234), we get a palindrome (43626862634).

The spelling of 43220460400 in words is "forty-three billion, two hundred twenty million, four hundred sixty thousand, four hundred".