1400241312 has 72 divisors (see below), whose sum is σ = 4216182516. Its totient is φ = 439289856.

The previous prime is 1400241299. The next prime is 1400241317. The reversal of 1400241312 is 2131420041.

It can be written as a sum of positive squares in 2 ways, for example, as 1094551056 + 305690256 = 33084^2 + 17484^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1400241317) 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 11 ways as a sum of consecutive naturals, for example, 138103 + ... + 147894.

Almost surely, 2^1400241312 is an apocalyptic number.

1400241312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1400241312 is an abundant number, since it is smaller than the sum of its proper divisors (2815941204).

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

1400241312 is a wasteful number, since it uses less digits than its factorization.

1400241312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286030 (or 286019 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1400241312 is about 37419.7983960363. The cubic root of 1400241312 is about 1118.7532129284.

Adding to 1400241312 its reverse (2131420041), we get a palindrome (3531661353).

The spelling of 1400241312 in words is "one billion, four hundred million, two hundred forty-one thousand, three hundred twelve".