1401868116 has 36 divisors (see below), whose sum is σ = 3865758624. Its totient is φ = 424808400.

The previous prime is 1401868087. The next prime is 1401868133. The reversal of 1401868116 is 6118681041.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 1769640 + ... + 1770431.

It is an arithmetic number, because the mean of its divisors is an integer number (107382184).

Almost surely, 2^1401868116 is an apocalyptic number.

It is an amenable number.

1401868116 is an abundant number, since it is smaller than the sum of its proper divisors (2463890508).

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

1401868116 is a wasteful number, since it uses less digits than its factorization.

1401868116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540092 (or 3540087 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1401868116 is about 37441.5292956898. The cubic root of 1401868116 is about 1119.1863020483.

The spelling of 1401868116 in words is "one billion, four hundred one million, eight hundred sixty-eight thousand, one hundred sixteen".