401481018 has 24 divisors (see below), whose sum is σ = 882861408. Its totient is φ = 131829192.

The previous prime is 401481011. The next prime is 401481023. The reversal of 401481018 is 810184104.

It is a super-2 number, since 2×401481018² = 322374015628632648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401480982 and 401481000.

It is not an unprimeable number, because it can be changed into a prime (401481011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165246 + ... + 167657.

It is an arithmetic number, because the mean of its divisors is an integer number (36785892).

Almost surely, 2^401481018 is an apocalyptic number.

401481018 is an abundant number, since it is smaller than the sum of its proper divisors (481380390).

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

401481018 is a wasteful number, since it uses less digits than its factorization.

401481018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332978 (or 332975 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 401481018 is about 20036.9912412019. The cubic root of 401481018 is about 737.7145325514.

The spelling of 401481018 in words is "four hundred one million, four hundred eighty-one thousand, eighteen".