401871006 has 12 divisors (see below), whose sum is σ = 870720552. Its totient is φ = 133956996.

The previous prime is 401870983. The next prime is 401871013. The reversal of 401871006 is 600178104.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11163066 + ... + 11163101.

It is an arithmetic number, because the mean of its divisors is an integer number (72560046).

Almost surely, 2^401871006 is an apocalyptic number.

401871006 is an abundant number, since it is smaller than the sum of its proper divisors (468849546).

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

401871006 is a wasteful number, since it uses less digits than its factorization.

401871006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22326175 (or 22326172 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 401871006 is about 20046.7205796858. The cubic root of 401871006 is about 737.9533206865.

The spelling of 401871006 in words is "four hundred one million, eight hundred seventy-one thousand, six".