440450040 has 32 divisors (see below), whose sum is σ = 1321350480. Its totient is φ = 117453312.

The previous prime is 440450033. The next prime is 440450063. The reversal of 440450040 is 40054044.

It is a junction number, because it is equal to n+sod(n) for n = 440449989 and 440450016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835089 + ... + 1835328.

Almost surely, 2^440450040 is an apocalyptic number.

440450040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440450040 is an abundant number, since it is smaller than the sum of its proper divisors (880900440).

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

440450040 is a wasteful number, since it uses less digits than its factorization.

440450040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670431 (or 3670427 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 440450040 is about 20986.9016293497. The cubic root of 440450040 is about 760.8497190531.

The spelling of 440450040 in words is "four hundred forty million, four hundred fifty thousand, forty".