1401140140 has 12 divisors (see below), whose sum is σ = 2942394336. Its totient is φ = 560456048.

The previous prime is 1401140137. The next prime is 1401140149. The reversal of 1401140140 is 410411041.

It is not an unprimeable number, because it can be changed into a prime (1401140149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35028484 + ... + 35028523.

It is an arithmetic number, because the mean of its divisors is an integer number (245199528).

Almost surely, 2^1401140140 is an apocalyptic number.

1401140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401140140 is an abundant number, since it is smaller than the sum of its proper divisors (1541254196).

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

1401140140 is a wasteful number, since it uses less digits than its factorization.

1401140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70057016 (or 70057014 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1401140140 is about 37431.8065286729. The cubic root of 1401140140 is about 1118.9925411118.

Adding to 1401140140 its reverse (410411041), we get a palindrome (1811551181).

The spelling of 1401140140 in words is "one billion, four hundred one million, one hundred forty thousand, one hundred forty".