800378406 has 24 divisors (see below), whose sum is σ = 1734692544. Its totient is φ = 266709840.

The previous prime is 800378347. The next prime is 800378419. The reversal of 800378406 is 604873008.

It is a super-2 number, since 2×800378406² = 1281211185582201672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87196 + ... + 95936.

It is an arithmetic number, because the mean of its divisors is an integer number (72278856).

Almost surely, 2^800378406 is an apocalyptic number.

800378406 is an abundant number, since it is smaller than the sum of its proper divisors (934314138).

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

800378406 is a wasteful number, since it uses less digits than its factorization.

800378406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13836 (or 13833 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 800378406 is about 28290.9597928384. The cubic root of 800378406 is about 928.4641107397.

The spelling of 800378406 in words is "eight hundred million, three hundred seventy-eight thousand, four hundred six".