406836378 has 32 divisors (see below), whose sum is σ = 973627200. Its totient is φ = 125180208.

The previous prime is 406836347. The next prime is 406836421. The reversal of 406836378 is 873638604.

406836378 is a `hidden beast` number, since 4 + 0 + 6 + 8 + 3 + 637 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289068 + ... + 290471.

It is an arithmetic number, because the mean of its divisors is an integer number (30425850).

Almost surely, 2^406836378 is an apocalyptic number.

406836378 is an abundant number, since it is smaller than the sum of its proper divisors (566790822).

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

406836378 is a wasteful number, since it uses less digits than its factorization.

406836378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579563 (or 579557 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 406836378 is about 20170.1853734665. The cubic root of 406836378 is about 740.9801827217.

The spelling of 406836378 in words is "four hundred six million, eight hundred thirty-six thousand, three hundred seventy-eight".