394729042741 has 8 divisors (see below), whose sum is σ = 430670952864. Its totient is φ = 358796707920.

The previous prime is 394729042733. The next prime is 394729042777. The reversal of 394729042741 is 147240927493.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 394729042741 - 2³ = 394729042733 is a prime.

It is a super-2 number, since 2×394729042741² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304729042741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307490 + ... + 2472643.

It is an arithmetic number, because the mean of its divisors is an integer number (53833869108).

Almost surely, 2^394729042741 is an apocalyptic number.

It is an amenable number.

394729042741 is a deficient number, since it is larger than the sum of its proper divisors (35941910123).

394729042741 is a wasteful number, since it uses less digits than its factorization.

394729042741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787651.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 394729042741 in words is "three hundred ninety-four billion, seven hundred twenty-nine million, forty-two thousand, seven hundred forty-one".