401703906 has 8 divisors (see below), whose sum is σ = 803407824. Its totient is φ = 133901300.

The previous prime is 401703881. The next prime is 401703923. The reversal of 401703906 is 609307104.

It is a happy number.

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

401703906 is an admirable number.

It is a super-2 number, since 2×401703906² = 322732056191313672, which contains 22 as substring.

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, 33475320 + ... + 33475331.

It is an arithmetic number, because the mean of its divisors is an integer number (100425978).

Almost surely, 2^401703906 is an apocalyptic number.

401703906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401703906 is a wasteful number, since it uses less digits than its factorization.

401703906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66950656.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 401703906 is about 20042.5523823689. The cubic root of 401703906 is about 737.8510249305.

The spelling of 401703906 in words is "four hundred one million, seven hundred three thousand, nine hundred six".