401004042 has 32 divisors (see below), whose sum is σ = 827039808. Its totient is φ = 129557376.

The previous prime is 401004031. The next prime is 401004053. The reversal of 401004042 is 240400104.

It is an interprime number because it is at equal distance from previous prime (401004031) and next prime (401004053).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18798 + ... + 33990.

It is an arithmetic number, because the mean of its divisors is an integer number (25844994).

Almost surely, 2^401004042 is an apocalyptic number.

401004042 is an abundant number, since it is smaller than the sum of its proper divisors (426035766).

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

401004042 is a wasteful number, since it uses less digits than its factorization.

401004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15334.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 401004042 is about 20025.0853181703. The cubic root of 401004042 is about 737.4222716894.

Adding to 401004042 its reverse (240400104), we get a palindrome (641404146).

The spelling of 401004042 in words is "four hundred one million, four thousand, forty-two".