1400053688 has 16 divisors (see below), whose sum is σ = 2863746360. Its totient is φ = 636388000.

The previous prime is 1400053679. The next prime is 1400053709. The reversal of 1400053688 is 8863500041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7954763 + ... + 7954938.

Almost surely, 2^1400053688 is an apocalyptic number.

It is an amenable number.

1400053688 is an abundant number, since it is smaller than the sum of its proper divisors (1463692672).

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

1400053688 is a wasteful number, since it uses less digits than its factorization.

1400053688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15909718 (or 15909714 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1400053688 is about 37417.2912969392. The cubic root of 1400053688 is about 1118.7032419395.

The spelling of 1400053688 in words is "one billion, four hundred million, fifty-three thousand, six hundred eighty-eight".