393470946 has 72 divisors (see below), whose sum is σ = 971919312. Its totient is φ = 119215800.

The previous prime is 393470929. The next prime is 393470951. The reversal of 393470946 is 649074393.

393470946 is a `hidden beast` number, since 3 + 93 + 470 + 94 + 6 = 666.

It is a super-2 number, since 2×393470946² = 309638770692269832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 55461 + ... + 62151.

Almost surely, 2^393470946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 393470946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485959656).

393470946 is an abundant number, since it is smaller than the sum of its proper divisors (578448366).

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

393470946 is a wasteful number, since it uses less digits than its factorization.

393470946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730 (or 6707 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 393470946 is about 19836.1020868516. The cubic root of 393470946 is about 732.7754145328.

The spelling of 393470946 in words is "three hundred ninety-three million, four hundred seventy thousand, nine hundred forty-six".