1082569978 has 16 divisors (see below), whose sum is σ = 1898994240. Its totient is φ = 453168576.

The previous prime is 1082569967. The next prime is 1082569991. The reversal of 1082569978 is 8799652801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898543 + ... + 899746.

It is an arithmetic number, because the mean of its divisors is an integer number (118687140).

Almost surely, 2^1082569978 is an apocalyptic number.

1082569978 is a deficient number, since it is larger than the sum of its proper divisors (816424262).

1082569978 is a wasteful number, since it uses less digits than its factorization.

1082569978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798341.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The square root of 1082569978 is about 32902.4311867679. The cubic root of 1082569978 is about 1026.7987382567.

The spelling of 1082569978 in words is "one billion, eighty-two million, five hundred sixty-nine thousand, nine hundred seventy-eight".