445666993400 has 48 divisors (see below), whose sum is σ = 1081226890800. Its totient is φ = 170516065280.

The previous prime is 445666993399. The next prime is 445666993477. The reversal of 445666993400 is 4399666544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48437465 + ... + 48446664.

It is an arithmetic number, because the mean of its divisors is an integer number (22525560225).

Almost surely, 2^445666993400 is an apocalyptic number.

445666993400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445666993400 is an abundant number, since it is smaller than the sum of its proper divisors (635559897400).

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

445666993400 is a wasteful number, since it uses less digits than its factorization.

445666993400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96884168 (or 96884159 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 445666993400 in words is "four hundred forty-five billion, six hundred sixty-six million, nine hundred ninety-three thousand, four hundred".