1966040288 has 24 divisors (see below), whose sum is σ = 3975256152. Its totient is φ = 956451456.

The previous prime is 1966040273. The next prime is 1966040317. The reversal of 1966040288 is 8820406691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829070 + ... + 831437.

It is an arithmetic number, because the mean of its divisors is an integer number (165635673).

Almost surely, 2^1966040288 is an apocalyptic number.

It is an amenable number.

1966040288 is an abundant number, since it is smaller than the sum of its proper divisors (2009215864).

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

1966040288 is a wasteful number, since it uses less digits than its factorization.

1966040288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660554 (or 1660546 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1966040288 is about 44340.0528641994. The cubic root of 1966040288 is about 1252.7492104805.

The spelling of 1966040288 in words is "one billion, nine hundred sixty-six million, forty thousand, two hundred eighty-eight".