394274671 has 16 divisors (see below), whose sum is σ = 471057408. Its totient is φ = 322660800.

The previous prime is 394274663. The next prime is 394274677. The reversal of 394274671 is 176472493.

It is not a de Polignac number, because 394274671 - 2³ = 394274663 is a prime.

It is a super-3 number, since 3×394274671³ (a number of 27 digits) contains 333 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 (394274677) 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, 99651 + ... + 103531.

It is an arithmetic number, because the mean of its divisors is an integer number (29441088).

Almost surely, 2^394274671 is an apocalyptic number.

394274671 is a deficient number, since it is larger than the sum of its proper divisors (76782737).

394274671 is a wasteful number, since it uses less digits than its factorization.

394274671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542.

The product of its digits is 254016, while the sum is 43.

The square root of 394274671 is about 19856.3508983902. The cubic root of 394274671 is about 733.2740107430.

The spelling of 394274671 in words is "three hundred ninety-four million, two hundred seventy-four thousand, six hundred seventy-one".