440347380 has 96 divisors (see below), whose sum is σ = 1377952128. Its totient is φ = 104140800.

The previous prime is 440347333. The next prime is 440347409. The reversal of 440347380 is 83743044.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18924 + ... + 35196.

It is an arithmetic number, because the mean of its divisors is an integer number (14353668).

Almost surely, 2^440347380 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 440347380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688976064).

440347380 is an abundant number, since it is smaller than the sum of its proper divisors (937604748).

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

440347380 is a wasteful number, since it uses less digits than its factorization.

440347380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16337 (or 16335 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 440347380 is about 20984.4556755709. The cubic root of 440347380 is about 760.7906015639.

The spelling of 440347380 in words is "four hundred forty million, three hundred forty-seven thousand, three hundred eighty".