1040643284 has 24 divisors (see below), whose sum is σ = 1834600320. Its totient is φ = 516486656.

The previous prime is 1040643283. The next prime is 1040643311. The reversal of 1040643284 is 4823460401.

It is a self number, because there is not a number n which added to its sum of digits gives 1040643284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040643283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330164 + ... + 333300.

It is an arithmetic number, because the mean of its divisors is an integer number (76441680).

Almost surely, 2^1040643284 is an apocalyptic number.

It is an amenable number.

1040643284 is a deficient number, since it is larger than the sum of its proper divisors (793957036).

1040643284 is a wasteful number, since it uses less digits than its factorization.

1040643284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1040643284 is about 32259.0031464086. The cubic root of 1040643284 is about 1013.3682547503.

The spelling of 1040643284 in words is "one billion, forty million, six hundred forty-three thousand, two hundred eighty-four".