440551872 has 140 divisors (see below), whose sum is σ = 1383030000. Its totient is φ = 138184704.

The previous prime is 440551871. The next prime is 440551897. The reversal of 440551872 is 278155044.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440551871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 85629 + ... + 90627.

Almost surely, 2^440551872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440551872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691515000).

440551872 is an abundant number, since it is smaller than the sum of its proper divisors (942478128).

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

440551872 is a wasteful number, since it uses less digits than its factorization.

440551872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5040 (or 5021 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 440551872 is about 20989.3275737933. The cubic root of 440551872 is about 760.9083506581.

The spelling of 440551872 in words is "four hundred forty million, five hundred fifty-one thousand, eight hundred seventy-two".