440437990 has 32 divisors (see below), whose sum is σ = 815844960. Its totient is φ = 171091200.

The previous prime is 440437969. The next prime is 440437997. The reversal of 440437990 is 99734044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440437997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91545 + ... + 96235.

It is an arithmetic number, because the mean of its divisors is an integer number (25495155).

Almost surely, 2^440437990 is an apocalyptic number.

440437990 is a deficient number, since it is larger than the sum of its proper divisors (375406970).

440437990 is a wasteful number, since it uses less digits than its factorization.

440437990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 440437990 is about 20986.6145435609. The cubic root of 440437990 is about 760.8427804510.

The spelling of 440437990 in words is "four hundred forty million, four hundred thirty-seven thousand, nine hundred ninety".