286749632 has 56 divisors (see below), whose sum is σ = 625912896. Its totient is φ = 129512448.

The previous prime is 286749623. The next prime is 286749649. The reversal of 286749632 is 236947682.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35438 + ... + 42770.

It is an arithmetic number, because the mean of its divisors is an integer number (11177016).

Almost surely, 2^286749632 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 286749632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312956448).

286749632 is an abundant number, since it is smaller than the sum of its proper divisors (339163264).

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

286749632 is a wasteful number, since it uses less digits than its factorization.

286749632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405 (or 7395 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 286749632 is about 16933.6833559625. The cubic root of 286749632 is about 659.4283633189.

The spelling of 286749632 in words is "two hundred eighty-six million, seven hundred forty-nine thousand, six hundred thirty-two".