478241657 has 8 divisors (see below), whose sum is σ = 490638720. Its totient is φ = 465902640.

The previous prime is 478241573. The next prime is 478241677. The reversal of 478241657 is 756142874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 478241657 - 2¹² = 478237561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478241677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2432 + ... + 31022.

It is an arithmetic number, because the mean of its divisors is an integer number (61329840).

Almost surely, 2^478241657 is an apocalyptic number.

It is an amenable number.

478241657 is a deficient number, since it is larger than the sum of its proper divisors (12397063).

478241657 is a wasteful number, since it uses less digits than its factorization.

478241657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29023.

The product of its digits is 376320, while the sum is 44.

The square root of 478241657 is about 21868.7369777040. The cubic root of 478241657 is about 782.0162917440.

The spelling of 478241657 in words is "four hundred seventy-eight million, two hundred forty-one thousand, six hundred fifty-seven".