394229742 has 32 divisors (see below), whose sum is σ = 803198592. Its totient is φ = 128968224.

The previous prime is 394229723. The next prime is 394229753. The reversal of 394229742 is 247922493.

It is a junction number, because it is equal to n+sod(n) for n = 394229694 and 394229703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116113 + ... + 119459.

It is an arithmetic number, because the mean of its divisors is an integer number (25099956).

Almost surely, 2^394229742 is an apocalyptic number.

394229742 is an abundant number, since it is smaller than the sum of its proper divisors (408968850).

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

394229742 is a wasteful number, since it uses less digits than its factorization.

394229742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712.

The product of its digits is 217728, while the sum is 42.

The square root of 394229742 is about 19855.2195152811. The cubic root of 394229742 is about 733.2461566251.

The spelling of 394229742 in words is "three hundred ninety-four million, two hundred twenty-nine thousand, seven hundred forty-two".