440003998 has 8 divisors (see below), whose sum is σ = 754292592. Its totient is φ = 188573136.

The previous prime is 440003959. The next prime is 440004011. The reversal of 440003998 is 899300044.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15714415 + ... + 15714442.

It is an arithmetic number, because the mean of its divisors is an integer number (94286574).

Almost surely, 2^440003998 is an apocalyptic number.

440003998 is a deficient number, since it is larger than the sum of its proper divisors (314288594).

440003998 is a wasteful number, since it uses less digits than its factorization.

440003998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31428866.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 440003998 is about 20976.2722617723. The cubic root of 440003998 is about 760.5927958126.

The spelling of 440003998 in words is "four hundred forty million, three thousand, nine hundred ninety-eight".