499444278 has 64 divisors (see below), whose sum is σ = 1057978368. Its totient is φ = 156988800.

The previous prime is 499444277. The next prime is 499444301. The reversal of 499444278 is 872444994.

It is a self number, because there is not a number n which added to its sum of digits gives 499444278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499444277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1575376 + ... + 1575692.

It is an arithmetic number, because the mean of its divisors is an integer number (16530912).

Almost surely, 2^499444278 is an apocalyptic number.

499444278 is an abundant number, since it is smaller than the sum of its proper divisors (558534090).

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

499444278 is a wasteful number, since it uses less digits than its factorization.

499444278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 2322432, while the sum is 51.

The square root of 499444278 is about 22348.2499986017. The cubic root of 499444278 is about 793.4063657472.

The spelling of 499444278 in words is "four hundred ninety-nine million, four hundred forty-four thousand, two hundred seventy-eight".