478090755 has 40 divisors (see below), whose sum is σ = 859293600. Its totient is φ = 254306304.

The previous prime is 478090751. The next prime is 478090771. The reversal of 478090755 is 557090874.

It is not a de Polignac number, because 478090755 - 2² = 478090751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 478090755.

It is not an unprimeable number, because it can be changed into a prime (478090751) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 176451 + ... + 179139.

It is an arithmetic number, because the mean of its divisors is an integer number (21482340).

Almost surely, 2^478090755 is an apocalyptic number.

478090755 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

478090755 is a deficient number, since it is larger than the sum of its proper divisors (381202845).

478090755 is a wasteful number, since it uses less digits than its factorization.

478090755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3136 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 478090755 is about 21865.2865291082. The cubic root of 478090755 is about 781.9340319110.

The spelling of 478090755 in words is "four hundred seventy-eight million, ninety thousand, seven hundred fifty-five".