806415378 has 64 divisors (see below), whose sum is σ = 1710415872. Its totient is φ = 253169280.

The previous prime is 806415377. The next prime is 806415413. The reversal of 806415378 is 873514608.

It is a super-3 number, since 3×806415378³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (806415377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 884743 + ... + 885653.

It is an arithmetic number, because the mean of its divisors is an integer number (26725248).

Almost surely, 2^806415378 is an apocalyptic number.

806415378 is an abundant number, since it is smaller than the sum of its proper divisors (904000494).

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

806415378 is a wasteful number, since it uses less digits than its factorization.

806415378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 806415378 is about 28397.4537238817. The cubic root of 806415378 is about 930.7926252250.

The spelling of 806415378 in words is "eight hundred six million, four hundred fifteen thousand, three hundred seventy-eight".