694042040 has 32 divisors (see below), whose sum is σ = 1583595360. Its totient is φ = 273705600.

The previous prime is 694042033. The next prime is 694042057. The reversal of 694042040 is 40240496.

It is a junction number, because it is equal to n+sod(n) for n = 694041994 and 694042012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119351 + ... + 125030.

It is an arithmetic number, because the mean of its divisors is an integer number (49487355).

Almost surely, 2^694042040 is an apocalyptic number.

It is an amenable number.

694042040 is an abundant number, since it is smaller than the sum of its proper divisors (889553320).

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

694042040 is a wasteful number, since it uses less digits than its factorization.

694042040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244463 (or 244459 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 694042040 is about 26344.6776408443. The cubic root of 694042040 is about 885.3777271906.

The spelling of 694042040 in words is "six hundred ninety-four million, forty-two thousand, forty".