1840040684 has 12 divisors (see below), whose sum is σ = 3222244200. Its totient is φ = 919399488.

The previous prime is 1840040651. The next prime is 1840040737. The reversal of 1840040684 is 4860400481.

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, 148514 + ... + 160425.

It is an arithmetic number, because the mean of its divisors is an integer number (268520350).

Almost surely, 2^1840040684 is an apocalyptic number.

It is an amenable number.

1840040684 is a deficient number, since it is larger than the sum of its proper divisors (1382203516).

1840040684 is a wasteful number, since it uses less digits than its factorization.

1840040684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310432 (or 310430 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 1840040684 is about 42895.6954017533. The cubic root of 1840040684 is about 1225.3941664227.

The spelling of 1840040684 in words is "one billion, eight hundred forty million, forty thousand, six hundred eighty-four".