3286868640 has 96 divisors (see below), whose sum is σ = 11294894016. Its totient is φ = 796815360.

The previous prime is 3286868639. The next prime is 3286868677. The reversal of 3286868640 is 468686823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305977 + ... + 316536.

It is an arithmetic number, because the mean of its divisors is an integer number (117655146).

Almost surely, 2^3286868640 is an apocalyptic number.

3286868640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3286868640 is an abundant number, since it is smaller than the sum of its proper divisors (8008025376).

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

3286868640 is a wasteful number, since it uses less digits than its factorization.

3286868640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622542 (or 622534 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 51.

The square root of 3286868640 is about 57331.2187206935. The cubic root of 3286868640 is about 1486.8281761519.

The spelling of 3286868640 in words is "three billion, two hundred eighty-six million, eight hundred sixty-eight thousand, six hundred forty".