1400012744 has 32 divisors (see below), whose sum is σ = 2833178040. Its totient is φ = 644736000.

The previous prime is 1400012743. The next prime is 1400012749. The reversal of 1400012744 is 4472100041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 715562500 + 684450244 = 26750^2 + 26162^2 .

It is not an unprimeable number, because it can be changed into a prime (1400012743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33344 + ... + 62544.

Almost surely, 2^1400012744 is an apocalyptic number.

It is an amenable number.

1400012744 is an abundant number, since it is smaller than the sum of its proper divisors (1433165296).

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

1400012744 is a wasteful number, since it uses less digits than its factorization.

1400012744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29681 (or 29677 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1400012744 is about 37416.7441662152. The cubic root of 1400012744 is about 1118.6923364930.

Adding to 1400012744 its reverse (4472100041), we get a palindrome (5872112785).

The spelling of 1400012744 in words is "one billion, four hundred million, twelve thousand, seven hundred forty-four".