393296220 has 36 divisors (see below), whose sum is σ = 1192999080. Its totient is φ = 104878944.

The previous prime is 393296213. The next prime is 393296221. The reversal of 393296220 is 22692393.

393296220 is a `hidden beast` number, since 3 + 9 + 3 + 29 + 622 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393296221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092310 + ... + 1092669.

Almost surely, 2^393296220 is an apocalyptic number.

393296220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

393296220 is an abundant number, since it is smaller than the sum of its proper divisors (799702860).

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

393296220 is a wasteful number, since it uses less digits than its factorization.

393296220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184994 (or 2184989 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 393296220 is about 19831.6973554963. The cubic root of 393296220 is about 732.6669322548. Note that the first 3 decimals are identical.

The spelling of 393296220 in words is "three hundred ninety-three million, two hundred ninety-six thousand, two hundred twenty".