1402401140 has 144 divisors (see below), whose sum is σ = 3579768192. Its totient is φ = 451809792.

The previous prime is 1402401139. The next prime is 1402401197. The reversal of 1402401140 is 411042041.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5062682 + ... + 5062958.

Almost surely, 2^1402401140 is an apocalyptic number.

1402401140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402401140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789884096).

1402401140 is an abundant number, since it is smaller than the sum of its proper divisors (2177367052).

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

1402401140 is a wasteful number, since it uses less digits than its factorization.

1402401140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1402401140 is about 37448.6467045206. The cubic root of 1402401140 is about 1119.3281312643.

Adding to 1402401140 its reverse (411042041), we get a palindrome (1813443181).

The spelling of 1402401140 in words is "one billion, four hundred two million, four hundred one thousand, one hundred forty".