440799894 has 20 divisors (see below), whose sum is σ = 987718644. Its totient is φ = 146933244.

The previous prime is 440799871. The next prime is 440799917. The reversal of 440799894 is 498997044.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (440799871) and next prime (440799917).

It is a super-2 number, since 2×440799894² = 388609093100822472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 440799894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1360332 + ... + 1360655.

Almost surely, 2^440799894 is an apocalyptic number.

440799894 is an abundant number, since it is smaller than the sum of its proper divisors (546918750).

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

440799894 is a wasteful number, since it uses less digits than its factorization.

440799894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721001 (or 2720992 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 440799894 is about 20995.2350308350. The cubic root of 440799894 is about 761.0511159929.

The spelling of 440799894 in words is "four hundred forty million, seven hundred ninety-nine thousand, eight hundred ninety-four".