1401418140 has 24 divisors (see below), whose sum is σ = 3923970960. Its totient is φ = 373711488.

The previous prime is 1401418111. The next prime is 1401418141. The reversal of 1401418140 is 418141041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401418140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401418141) 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, 11678425 + ... + 11678544.

It is an arithmetic number, because the mean of its divisors is an integer number (163498790).

Almost surely, 2^1401418140 is an apocalyptic number.

1401418140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401418140 is an abundant number, since it is smaller than the sum of its proper divisors (2522552820).

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

1401418140 is a wasteful number, since it uses less digits than its factorization.

1401418140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23356981 (or 23356979 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1401418140 is about 37435.5197639889. The cubic root of 1401418140 is about 1119.0665425972.

Adding to 1401418140 its reverse (418141041), we get a palindrome (1819559181).

The spelling of 1401418140 in words is "one billion, four hundred one million, four hundred eighteen thousand, one hundred forty".