401043042 has 32 divisors (see below), whose sum is σ = 929957760. Its totient is φ = 127868400.

The previous prime is 401043029. The next prime is 401043047. The reversal of 401043042 is 240340104.

It is a super-2 number, since 2×401043042² = 321671043073227528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (401043047) 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, 160209 + ... + 162692.

It is an arithmetic number, because the mean of its divisors is an integer number (29061180).

Almost surely, 2^401043042 is an apocalyptic number.

401043042 is an abundant number, since it is smaller than the sum of its proper divisors (528914718).

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

401043042 is a wasteful number, since it uses less digits than its factorization.

401043042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322935 (or 322929 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 401043042 is about 20026.0590731177. The cubic root of 401043042 is about 737.4461771312.

Adding to 401043042 its reverse (240340104), we get a palindrome (641383146).

The spelling of 401043042 in words is "four hundred one million, forty-three thousand, forty-two".