401040068 has 48 divisors (see below), whose sum is σ = 867935040. Its totient is φ = 159408000.

The previous prime is 401040067. The next prime is 401040083. The reversal of 401040068 is 860040104.

It is a happy number.

It is a super-2 number, since 2×401040068² = 321666272282889248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401040067) 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, 7583 + ... + 29318.

It is an arithmetic number, because the mean of its divisors is an integer number (18081980).

Almost surely, 2^401040068 is an apocalyptic number.

It is an amenable number.

401040068 is an abundant number, since it is smaller than the sum of its proper divisors (466894972).

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

401040068 is a wasteful number, since it uses less digits than its factorization.

401040068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36948 (or 36946 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 401040068 is about 20025.9848197286. The cubic root of 401040068 is about 737.4443542426. Note that the first 3 decimals are identical.

The spelling of 401040068 in words is "four hundred one million, forty thousand, sixty-eight".