440512990 has 8 divisors (see below), whose sum is σ = 792923400. Its totient is φ = 176205192.

The previous prime is 440512973. The next prime is 440512991. The reversal of 440512990 is 99215044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440512991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22025640 + ... + 22025659.

It is an arithmetic number, because the mean of its divisors is an integer number (99115425).

Almost surely, 2^440512990 is an apocalyptic number.

440512990 is a deficient number, since it is larger than the sum of its proper divisors (352410410).

440512990 is a wasteful number, since it uses less digits than its factorization.

440512990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44051306.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 440512990 is about 20988.4013207295. The cubic root of 440512990 is about 760.8859647139.

The spelling of 440512990 in words is "four hundred forty million, five hundred twelve thousand, nine hundred ninety".