1402985664 has 112 divisors (see below), whose sum is σ = 4266895200. Its totient is φ = 451519488.

The previous prime is 1402985659. The next prime is 1402985677. The reversal of 1402985664 is 4665892041.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 36114 + ... + 64110.

Almost surely, 2^1402985664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402985664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133447600).

1402985664 is an abundant number, since it is smaller than the sum of its proper divisors (2863909536).

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

1402985664 is a wasteful number, since it uses less digits than its factorization.

1402985664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28047 (or 28031 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1402985664 is about 37456.4502322364. The cubic root of 1402985664 is about 1119.4836225043.

The spelling of 1402985664 in words is "one billion, four hundred two million, nine hundred eighty-five thousand, six hundred sixty-four".