1401202140 has 48 divisors (see below), whose sum is σ = 4225165728. Its totient is φ = 344911104.

The previous prime is 1401202123. The next prime is 1401202141. The reversal of 1401202140 is 412021041.

1401202140 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401202141) 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, 897427 + ... + 898986.

It is an arithmetic number, because the mean of its divisors is an integer number (88024286).

Almost surely, 2^1401202140 is an apocalyptic number.

1401202140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401202140 is an abundant number, since it is smaller than the sum of its proper divisors (2823963588).

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

1401202140 is a wasteful number, since it uses less digits than its factorization.

1401202140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796438 (or 1796436 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1401202140 is about 37432.6346922041. The cubic root of 1401202140 is about 1119.0090458882.

Adding to 1401202140 its reverse (412021041), we get a palindrome (1813223181).

The spelling of 1401202140 in words is "one billion, four hundred one million, two hundred two thousand, one hundred forty".