1683505372 has 12 divisors (see below), whose sum is σ = 2947924000. Its totient is φ = 841241376.

The previous prime is 1683505363. The next prime is 1683505379. The reversal of 1683505372 is 2735053861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683505379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120372 + ... + 133627.

Almost surely, 2^1683505372 is an apocalyptic number.

It is an amenable number.

1683505372 is a deficient number, since it is larger than the sum of its proper divisors (1264418628).

1683505372 is a wasteful number, since it uses less digits than its factorization.

1683505372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255660 (or 255658 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1683505372 is about 41030.5419413393. The cubic root of 1683505372 is about 1189.6106279710.

The spelling of 1683505372 in words is "one billion, six hundred eighty-three million, five hundred five thousand, three hundred seventy-two".