406226878 has 8 divisors (see below), whose sum is σ = 641410920. Its totient is φ = 192423240.

The previous prime is 406226869. The next prime is 406226903. The reversal of 406226878 is 878622604.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5345053 + ... + 5345128.

It is an arithmetic number, because the mean of its divisors is an integer number (80176365).

Almost surely, 2^406226878 is an apocalyptic number.

406226878 is a deficient number, since it is larger than the sum of its proper divisors (235184042).

406226878 is a wasteful number, since it uses less digits than its factorization.

406226878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690202.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 406226878 is about 20155.0707763580. The cubic root of 406226878 is about 740.6099657924.

The spelling of 406226878 in words is "four hundred six million, two hundred twenty-six thousand, eight hundred seventy-eight".