1145986672 has 80 divisors (see below), whose sum is σ = 2426828800. Its totient is φ = 522236160.

The previous prime is 1145986669. The next prime is 1145986697. The reversal of 1145986672 is 2766895411.

It is a happy number.

Its product of digits (725760) is a multiple of the sum of its prime divisors (768).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610229 + ... + 2610667.

It is an arithmetic number, because the mean of its divisors is an integer number (30335360).

Almost surely, 2^1145986672 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 1145986672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213414400).

1145986672 is an abundant number, since it is smaller than the sum of its proper divisors (1280842128).

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

1145986672 is a wasteful number, since it uses less digits than its factorization.

1145986672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 768 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 1145986672 is about 33852.4249057582. The cubic root of 1145986672 is about 1046.4693727056.

The spelling of 1145986672 in words is "one billion, one hundred forty-five million, nine hundred eighty-six thousand, six hundred seventy-two".