415305978 has 8 divisors (see below), whose sum is σ = 830611968. Its totient is φ = 138435324.

The previous prime is 415305973. The next prime is 415306027. The reversal of 415305978 is 879503514.

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

415305978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (415305973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34608826 + ... + 34608837.

It is an arithmetic number, because the mean of its divisors is an integer number (103826496).

Almost surely, 2^415305978 is an apocalyptic number.

415305978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

415305978 is a wasteful number, since it uses less digits than its factorization.

415305978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69217668.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 415305978 is about 20379.0573383560. The cubic root of 415305978 is about 746.0868648955.

The spelling of 415305978 in words is "four hundred fifteen million, three hundred five thousand, nine hundred seventy-eight".