694291042 has 8 divisors (see below), whose sum is σ = 1044991836. Its totient is φ = 345960432.

The previous prime is 694291021. The next prime is 694291057. The reversal of 694291042 is 240192496.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 691637401 + 2653641 = 26299^2 + 1629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 694290992 and 694291010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591813 + ... + 592984.

Almost surely, 2^694291042 is an apocalyptic number.

694291042 is a deficient number, since it is larger than the sum of its proper divisors (350700794).

694291042 is a wasteful number, since it uses less digits than its factorization.

694291042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185092.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 694291042 is about 26349.4030672423. The cubic root of 694291042 is about 885.4835970814.

The spelling of 694291042 in words is "six hundred ninety-four million, two hundred ninety-one thousand, forty-two".