799440 has 40 divisors (see below), whose sum is σ = 2479008. Its totient is φ = 213120.

The previous prime is 799427. The next prime is 799441. The reversal of 799440 is 44997.

799440 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 799440.

It is not an unprimeable number, because it can be changed into a prime (799441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1426 + ... + 1905.

2⁷⁹⁹⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

799440 is an abundant number, since it is smaller than the sum of its proper divisors (1679568).

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

799440 is a wasteful number, since it uses less digits than its factorization.

799440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347 (or 3341 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 799440 is about 894.1140866802. The cubic root of 799440 is about 92.8101108682.

The spelling of 799440 in words is "seven hundred ninety-nine thousand, four hundred forty".