401312442 has 8 divisors (see below), whose sum is σ = 802624896. Its totient is φ = 133770812.

The previous prime is 401312437. The next prime is 401312459. The reversal of 401312442 is 244213104.

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

401312442 is an admirable number.

It is a super-2 number, since 2×401312442² = 322103352208006728, 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, 33442698 + ... + 33442709.

It is an arithmetic number, because the mean of its divisors is an integer number (100328112).

Almost surely, 2^401312442 is an apocalyptic number.

401312442 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.

401312442 is a wasteful number, since it uses less digits than its factorization.

401312442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66885412.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401312442 is about 20032.7841799386. The cubic root of 401312442 is about 737.6112662537.

Adding to 401312442 its reverse (244213104), we get a palindrome (645525546).

The spelling of 401312442 in words is "four hundred one million, three hundred twelve thousand, four hundred forty-two".