478720810 has 16 divisors (see below), whose sum is σ = 870230952. Its totient is φ = 189592000.

The previous prime is 478720807. The next prime is 478720813. The reversal of 478720810 is 18027874.

It is an interprime number because it is at equal distance from previous prime (478720807) and next prime (478720813).

It can be written as a sum of positive squares in 4 ways, for example, as 464273209 + 14447601 = 21547^2 + 3801^2 .

It is a super-2 number, since 2×478720810² = 458347227854112200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 478720810.

It is not an unprimeable number, because it can be changed into a prime (478720813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235981 + ... + 238000.

Almost surely, 2^478720810 is an apocalyptic number.

478720810 is a deficient number, since it is larger than the sum of its proper divisors (391510142).

478720810 is a wasteful number, since it uses less digits than its factorization.

478720810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474089.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 478720810 is about 21879.6894402092. The cubic root of 478720810 is about 782.2773734074.

The spelling of 478720810 in words is "four hundred seventy-eight million, seven hundred twenty thousand, eight hundred ten".