1285082782 has 16 divisors (see below), whose sum is σ = 1957613472. Its totient is φ = 632620800.

The previous prime is 1285082759. The next prime is 1285082783. The reversal of 1285082782 is 2872805821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285082783) 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, 15298 + ... + 52954.

It is an arithmetic number, because the mean of its divisors is an integer number (122350842).

Almost surely, 2^1285082782 is an apocalyptic number.

1285082782 is a deficient number, since it is larger than the sum of its proper divisors (672530690).

1285082782 is a wasteful number, since it uses less digits than its factorization.

1285082782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37923.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 1285082782 is about 35848.0512998963. The cubic root of 1285082782 is about 1087.2023144692.

The spelling of 1285082782 in words is "one billion, two hundred eighty-five million, eighty-two thousand, seven hundred eighty-two".