443252140 has 24 divisors (see below), whose sum is σ = 979821360. Its totient is φ = 167969088.

The previous prime is 443252087. The next prime is 443252149. The reversal of 443252140 is 41252344.

It is a happy number.

It is a super-2 number, since 2×443252140² = 392944919229159200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (443252149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582847 + ... + 583606.

It is an arithmetic number, because the mean of its divisors is an integer number (40825890).

Almost surely, 2^443252140 is an apocalyptic number.

It is an amenable number.

443252140 is an abundant number, since it is smaller than the sum of its proper divisors (536569220).

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

443252140 is a wasteful number, since it uses less digits than its factorization.

443252140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166481 (or 1166479 counting only the distinct ones).

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

The square root of 443252140 is about 21053.5540942616. The cubic root of 443252140 is about 762.4597932754.

The spelling of 443252140 in words is "four hundred forty-three million, two hundred fifty-two thousand, one hundred forty".