393006429 has 12 divisors (see below), whose sum is σ = 572701116. Its totient is φ = 259684992.

The previous prime is 393006421. The next prime is 393006473. The reversal of 393006429 is 924600393.

It is a happy number.

393006429 is a `hidden beast` number, since 3 + 9 + 3 + 0 + 0 + 642 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23328900 + 369677529 = 4830^2 + 19227^2 .

It is not a de Polignac number, because 393006429 - 2³ = 393006421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 393006393 and 393006402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393006421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192202 + ... + 194235.

It is an arithmetic number, because the mean of its divisors is an integer number (47725093).

Almost surely, 2^393006429 is an apocalyptic number.

It is an amenable number.

393006429 is a deficient number, since it is larger than the sum of its proper divisors (179694687).

393006429 is a wasteful number, since it uses less digits than its factorization.

393006429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386556 (or 386553 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 393006429 is about 19824.3897510113. The cubic root of 393006429 is about 732.4869386171.

The spelling of 393006429 in words is "three hundred ninety-three million, six thousand, four hundred twenty-nine".