1442978688 has 64 divisors (see below), whose sum is σ = 3936543120. Its totient is φ = 467988480.

The previous prime is 1442978657. The next prime is 1442978707. The reversal of 1442978688 is 8868792441.

It is a tau number, because it is divible by the number of its divisors (64).

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, 36573 + ... + 64988.

Almost surely, 2^1442978688 is an apocalyptic number.

It is an amenable number.

1442978688 is an abundant number, since it is smaller than the sum of its proper divisors (2493564432).

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

1442978688 is a wasteful number, since it uses less digits than its factorization.

1442978688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101615 (or 101603 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 57.

The square root of 1442978688 is about 37986.5593072076. The cubic root of 1442978688 is about 1130.0213241597.

The spelling of 1442978688 in words is "one billion, four hundred forty-two million, nine hundred seventy-eight thousand, six hundred eighty-eight".