43494032400 has 480 divisors, whose sum is σ = 180511779840. Its totient is φ = 8693360640.

The previous prime is 43494032389. The next prime is 43494032441. The reversal of 43494032400 is 423049434.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2064319 + ... + 2085281.

It is an arithmetic number, because the mean of its divisors is an integer number (376066208).

Almost surely, 2^43494032400 is an apocalyptic number.

43494032400 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 43494032400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90255889920).

43494032400 is an abundant number, since it is smaller than the sum of its proper divisors (137017747440).

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

43494032400 is a wasteful number, since it uses less digits than its factorization.

43494032400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21023 (or 21012 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 43494032400 in words is "forty-three billion, four hundred ninety-four million, thirty-two thousand, four hundred".