418157985 has 64 divisors (see below), whose sum is σ = 809164800. Its totient is φ = 180133632.

The previous prime is 418157983. The next prime is 418158007. The reversal of 418157985 is 589751814.

It is a happy number.

It is not a de Polignac number, because 418157985 - 2¹ = 418157983 is a prime.

It is a super-2 number, since 2×418157985² = 349712200838520450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (418157983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 476367 + ... + 477243.

It is an arithmetic number, because the mean of its divisors is an integer number (12643200).

Almost surely, 2^418157985 is an apocalyptic number.

It is an amenable number.

418157985 is a deficient number, since it is larger than the sum of its proper divisors (391006815).

418157985 is a wasteful number, since it uses less digits than its factorization.

418157985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its digits is 403200, while the sum is 48.

The square root of 418157985 is about 20448.9115847274. The cubic root of 418157985 is about 747.7908235529.

The spelling of 418157985 in words is "four hundred eighteen million, one hundred fifty-seven thousand, nine hundred eighty-five".