393037542 has 16 divisors (see below), whose sum is σ = 873416880. Its totient is φ = 131012496.

The previous prime is 393037523. The next prime is 393037571. The reversal of 393037542 is 245730393.

It is a junction number, because it is equal to n+sod(n) for n = 393037497 and 393037506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639183 + ... + 3639290.

It is an arithmetic number, because the mean of its divisors is an integer number (54588555).

Almost surely, 2^393037542 is an apocalyptic number.

393037542 is an abundant number, since it is smaller than the sum of its proper divisors (480379338).

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

393037542 is a wasteful number, since it uses less digits than its factorization.

393037542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278484 (or 7278478 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 393037542 is about 19825.1744506826. The cubic root of 393037542 is about 732.5062676179.

The spelling of 393037542 in words is "three hundred ninety-three million, thirty-seven thousand, five hundred forty-two".