417379878 has 40 divisors (see below), whose sum is σ = 984470520. Its totient is φ = 131803200.

The previous prime is 417379871. The next prime is 417379883. The reversal of 417379878 is 878973714.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417379871) by changing a digit.

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 in 19 ways as a sum of consecutive naturals, for example, 64723 + ... + 70878.

It is an arithmetic number, because the mean of its divisors is an integer number (24611763).

Almost surely, 2^417379878 is an apocalyptic number.

417379878 is an abundant number, since it is smaller than the sum of its proper divisors (567090642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

417379878 is a wasteful number, since it uses less digits than its factorization.

417379878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135634 (or 135625 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 417379878 is about 20429.8770921413. The cubic root of 417379878 is about 747.3267066582.

It can be divided in two parts, 41737 and 9878, that added together give a palindrome (51615).

The spelling of 417379878 in words is "four hundred seventeen million, three hundred seventy-nine thousand, eight hundred seventy-eight".