393064390 has 8 divisors (see below), whose sum is σ = 707515920. Its totient is φ = 157225752.

The previous prime is 393064387. The next prime is 393064459. The reversal of 393064390 is 93460393.

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

It is a super-2 number, since 2×393064390² = 308999229372144200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19653210 + ... + 19653229.

It is an arithmetic number, because the mean of its divisors is an integer number (88439490).

Almost surely, 2^393064390 is an apocalyptic number.

393064390 is a deficient number, since it is larger than the sum of its proper divisors (314451530).

393064390 is a wasteful number, since it uses less digits than its factorization.

393064390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39306446.

The product of its (nonzero) digits is 52488, while the sum is 37.

The square root of 393064390 is about 19825.8515580038. The cubic root of 393064390 is about 732.5229461608.

The spelling of 393064390 in words is "three hundred ninety-three million, sixty-four thousand, three hundred ninety".