393042930 has 64 divisors (see below), whose sum is σ = 1134812160. Its totient is φ = 85109184.

The previous prime is 393042901. The next prime is 393042967. The reversal of 393042930 is 39240393.

It is a junction number, because it is equal to n+sod(n) for n = 393042891 and 393042900.

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 31 ways as a sum of consecutive naturals, for example, 45264 + ... + 53243.

It is an arithmetic number, because the mean of its divisors is an integer number (17731440).

Almost surely, 2^393042930 is an apocalyptic number.

393042930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

393042930 is an abundant number, since it is smaller than the sum of its proper divisors (741769230).

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

393042930 is a wasteful number, since it uses less digits than its factorization.

393042930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98543.

The product of its (nonzero) digits is 17496, while the sum is 33.

The square root of 393042930 is about 19825.3103380502. The cubic root of 393042930 is about 732.5096148179.

The spelling of 393042930 in words is "three hundred ninety-three million, forty-two thousand, nine hundred thirty".