416478491 has 24 divisors (see below), whose sum is σ = 495321792. Its totient is φ = 347846400.

The previous prime is 416478487. The next prime is 416478497. The reversal of 416478491 is 194874614.

It is a happy number.

It is not a de Polignac number, because 416478491 - 2² = 416478487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416478497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425795 + ... + 426771.

It is an arithmetic number, because the mean of its divisors is an integer number (20638408).

Almost surely, 2^416478491 is an apocalyptic number.

416478491 is a deficient number, since it is larger than the sum of its proper divisors (78843301).

416478491 is a wasteful number, since it uses less digits than its factorization.

416478491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1272 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 416478491 is about 20407.8046590024. The cubic root of 416478491 is about 746.7883353186.

The spelling of 416478491 in words is "four hundred sixteen million, four hundred seventy-eight thousand, four hundred ninety-one".