478306755 has 32 divisors (see below), whose sum is σ = 851238720. Its totient is φ = 254822400.

The previous prime is 478306729. The next prime is 478306771. The reversal of 478306755 is 557603874.

It is not a de Polignac number, because 478306755 - 2⁶ = 478306691 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 478306755.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215029 + ... + 217241.

It is an arithmetic number, because the mean of its divisors is an integer number (26601210).

Almost surely, 2^478306755 is an apocalyptic number.

478306755 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

478306755 is a deficient number, since it is larger than the sum of its proper divisors (372931965).

478306755 is a wasteful number, since it uses less digits than its factorization.

478306755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3828 (or 3822 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 478306755 is about 21870.2253074814. The cubic root of 478306755 is about 782.0517726814.

The spelling of 478306755 in words is "four hundred seventy-eight million, three hundred six thousand, seven hundred fifty-five".