43797990400 has 264 divisors, whose sum is σ = 113024531840. Its totient is φ = 16809984000.

The previous prime is 43797990377. The next prime is 43797990437. The reversal of 43797990400 is 409979734.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181734280 + ... + 181734520.

Almost surely, 2^43797990400 is an apocalyptic number.

43797990400 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 43797990400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56512265920).

43797990400 is an abundant number, since it is smaller than the sum of its proper divisors (69226541440).

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

43797990400 is a wasteful number, since it uses less digits than its factorization.

43797990400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 43797990400 in words is "forty-three billion, seven hundred ninety-seven million, nine hundred ninety thousand, four hundred".