1646140796 has 24 divisors (see below), whose sum is σ = 3007105920. Its totient is φ = 787564800.

The previous prime is 1646140789. The next prime is 1646140813. The reversal of 1646140796 is 6970416461.

It is a congruent number.

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, 63545 + ... + 85616.

It is an arithmetic number, because the mean of its divisors is an integer number (125296080).

Almost surely, 2^1646140796 is an apocalyptic number.

It is an amenable number.

1646140796 is a deficient number, since it is larger than the sum of its proper divisors (1360965124).

1646140796 is a wasteful number, since it uses less digits than its factorization.

1646140796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149285 (or 149283 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1646140796 is about 40572.6606965824. The cubic root of 1646140796 is about 1180.7437607324.

The spelling of 1646140796 in words is "one billion, six hundred forty-six million, one hundred forty thousand, seven hundred ninety-six".