478085386 has 4 divisors (see below), whose sum is σ = 717128082. Its totient is φ = 239042692.

The previous prime is 478085369. The next prime is 478085411. The reversal of 478085386 is 683580874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 342805225 + 135280161 = 18515^2 + 11631^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 119521345 + ... + 119521348.

Almost surely, 2^478085386 is an apocalyptic number.

478085386 is a deficient number, since it is larger than the sum of its proper divisors (239042696).

478085386 is a wasteful number, since it uses less digits than its factorization.

478085386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239042695.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 478085386 is about 21865.1637542462. The cubic root of 478085386 is about 781.9311048380.

The spelling of 478085386 in words is "four hundred seventy-eight million, eighty-five thousand, three hundred eighty-six".