393043472 has 10 divisors (see below), whose sum is σ = 761521758. Its totient is φ = 196521728.

The previous prime is 393043471. The next prime is 393043477. The reversal of 393043472 is 274340393.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 386672896 + 6370576 = 19664^2 + 2524^2 .

It is not an unprimeable number, because it can be changed into a prime (393043471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12282593 + ... + 12282624.

Almost surely, 2^393043472 is an apocalyptic number.

It is an amenable number.

393043472 is a deficient number, since it is larger than the sum of its proper divisors (368478286).

393043472 is a wasteful number, since it uses less digits than its factorization.

393043472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24565225 (or 24565219 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 393043472 is about 19825.3240074406. The cubic root of 393043472 is about 732.5099515241.

The spelling of 393043472 in words is "three hundred ninety-three million, forty-three thousand, four hundred seventy-two".