401000140 has 24 divisors (see below), whose sum is σ = 844541712. Its totient is φ = 159935040.

The previous prime is 401000123. The next prime is 401000143. The reversal of 401000140 is 41000104.

It is a super-2 number, since 2×401000140² = 321602224560039200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (401000143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21951 + ... + 35830.

It is an arithmetic number, because the mean of its divisors is an integer number (35189238).

Almost surely, 2^401000140 is an apocalyptic number.

It is an amenable number.

401000140 is an abundant number, since it is smaller than the sum of its proper divisors (443541572).

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

401000140 is a wasteful number, since it uses less digits than its factorization.

401000140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58137 (or 58135 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 401000140 is about 20024.9878901337. The cubic root of 401000140 is about 737.4198798340.

Adding to 401000140 its reverse (41000104), we get a palindrome (442000244).

The spelling of 401000140 in words is "four hundred one million, one hundred forty", and thus it is an aban number.