401426242 has 16 divisors (see below), whose sum is σ = 704164032. Its totient is φ = 168038640.

The previous prime is 401426231. The next prime is 401426251. The reversal of 401426242 is 242624104.

It is a happy number.

It is a super-2 number, since 2×401426242² = 322286055532485128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332809 + ... + 334012.

It is an arithmetic number, because the mean of its divisors is an integer number (44010252).

Almost surely, 2^401426242 is an apocalyptic number.

401426242 is a deficient number, since it is larger than the sum of its proper divisors (302737790).

401426242 is a wasteful number, since it uses less digits than its factorization.

401426242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666873.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 401426242 is about 20035.6243226908. The cubic root of 401426242 is about 737.6809810364.

The spelling of 401426242 in words is "four hundred one million, four hundred twenty-six thousand, two hundred forty-two".