1400653144 has 32 divisors (see below), whose sum is σ = 2866544640. Its totient is φ = 636311200.

The previous prime is 1400653127. The next prime is 1400653151. The reversal of 1400653144 is 4413560041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224937 + ... + 231079.

It is an arithmetic number, because the mean of its divisors is an integer number (89579520).

Almost surely, 2^1400653144 is an apocalyptic number.

It is an amenable number.

1400653144 is an abundant number, since it is smaller than the sum of its proper divisors (1465891496).

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

1400653144 is a wasteful number, since it uses less digits than its factorization.

1400653144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8751 (or 8747 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1400653144 is about 37425.3008538342. The cubic root of 1400653144 is about 1118.8628828847.

The spelling of 1400653144 in words is "one billion, four hundred million, six hundred fifty-three thousand, one hundred forty-four".