478039725 has 30 divisors (see below), whose sum is σ = 885498570. Its totient is φ = 254953440.

The previous prime is 478039703. The next prime is 478039739. The reversal of 478039725 is 527930874.

It can be written as a sum of positive squares in 3 ways, for example, as 7193124 + 470846601 = 2682^2 + 21699^2 .

It is not a de Polignac number, because 478039725 - 2¹² = 478035629 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 116010 + ... + 120059.

It is an arithmetic number, because the mean of its divisors is an integer number (29516619).

Almost surely, 2^478039725 is an apocalyptic number.

478039725 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

478039725 is a deficient number, since it is larger than the sum of its proper divisors (407458845).

478039725 is a wasteful number, since it uses less digits than its factorization.

478039725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236091 (or 236077 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 478039725 is about 21864.1195798047. The cubic root of 478039725 is about 781.9062104754.

The spelling of 478039725 in words is "four hundred seventy-eight million, thirty-nine thousand, seven hundred twenty-five".