1401868312 has 16 divisors (see below), whose sum is σ = 2830695840. Its totient is φ = 647016096.

The previous prime is 1401868309. The next prime is 1401868313. The reversal of 1401868312 is 2138681041.

It is a super-4 number, since 4×1401868312⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401868313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6739648 + ... + 6739855.

It is an arithmetic number, because the mean of its divisors is an integer number (176918490).

Almost surely, 2^1401868312 is an apocalyptic number.

It is an amenable number.

1401868312 is an abundant number, since it is smaller than the sum of its proper divisors (1428827528).

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

1401868312 is a wasteful number, since it uses less digits than its factorization.

1401868312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13479522 (or 13479518 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1401868312 is about 37441.5319131042. The cubic root of 1401868312 is about 1119.1863542074.

The spelling of 1401868312 in words is "one billion, four hundred one million, eight hundred sixty-eight thousand, three hundred twelve".