683457642 has 32 divisors (see below), whose sum is σ = 1735766400. Its totient is φ = 195273504.

The previous prime is 683457641. The next prime is 683457679. The reversal of 683457642 is 246754386.

683457642 is a `hidden beast` number, since 6 + 8 + 34 + 576 + 42 = 666.

It is a super-2 number, since 2×683457642² = 934228696816400328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (683457641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903667 + ... + 904422.

It is an arithmetic number, because the mean of its divisors is an integer number (54242700).

Almost surely, 2^683457642 is an apocalyptic number.

683457642 is an abundant number, since it is smaller than the sum of its proper divisors (1052308758).

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

683457642 is a wasteful number, since it uses less digits than its factorization.

683457642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808107 (or 1808101 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 683457642 is about 26143.0228168053. The cubic root of 683457642 is about 880.8538724854.

The spelling of 683457642 in words is "six hundred eighty-three million, four hundred fifty-seven thousand, six hundred forty-two".