393220074 has 24 divisors (see below), whose sum is σ = 851591232. Its totient is φ = 120990480.

The previous prime is 393220057. The next prime is 393220097. The reversal of 393220074 is 470022393.

It is a super-3 number, since 3×393220074³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192882 + ... + 194909.

It is an arithmetic number, because the mean of its divisors is an integer number (35482968).

Almost surely, 2^393220074 is an apocalyptic number.

393220074 is an abundant number, since it is smaller than the sum of its proper divisors (458371158).

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

393220074 is a wasteful number, since it uses less digits than its factorization.

393220074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387822 (or 387809 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 393220074 is about 19829.7774571476. Note that the first 3 decimals coincide. The cubic root of 393220074 is about 732.6196453718.

The spelling of 393220074 in words is "three hundred ninety-three million, two hundred twenty thousand, seventy-four".