401442002 has 32 divisors (see below), whose sum is σ = 673505280. Its totient is φ = 178205760.

The previous prime is 401442001. The next prime is 401442011. The reversal of 401442002 is 200244104.

It is a super-2 number, since 2×401442002² = 322311361939536008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401442001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137999 + ... + 140877.

It is an arithmetic number, because the mean of its divisors is an integer number (21047040).

Almost surely, 2^401442002 is an apocalyptic number.

401442002 is a deficient number, since it is larger than the sum of its proper divisors (272063278).

401442002 is a wasteful number, since it uses less digits than its factorization.

401442002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 401442002 is about 20036.0176182793. The cubic root of 401442002 is about 737.6906346987.

Adding to 401442002 its reverse (200244104), we get a palindrome (601686106).

The spelling of 401442002 in words is "four hundred one million, four hundred forty-two thousand, two".