401442306 has 8 divisors (see below), whose sum is σ = 802884624. Its totient is φ = 133814100.

The previous prime is 401442289. The next prime is 401442311. The reversal of 401442306 is 603244104.

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

401442306 is an admirable number.

It is a super-2 number, since 2×401442306² = 322311850093195272, 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, 33453520 + ... + 33453531.

It is an arithmetic number, because the mean of its divisors is an integer number (100360578).

Almost surely, 2^401442306 is an apocalyptic number.

401442306 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.

401442306 is a wasteful number, since it uses less digits than its factorization.

401442306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66907056.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 401442306 is about 20036.0252046158. The cubic root of 401442306 is about 737.6908209090.

The spelling of 401442306 in words is "four hundred one million, four hundred forty-two thousand, three hundred six".