393493226401 has 16 divisors (see below), whose sum is σ = 430019020800. Its totient is φ = 357093422800.

The previous prime is 393493226389. The next prime is 393493226459. The reversal of 393493226401 is 104622394393.

It is a cyclic number.

It is not a de Polignac number, because 393493226401 - 2²¹ = 393491129249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393493226471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26653860 + ... + 26668618.

It is an arithmetic number, because the mean of its divisors is an integer number (26876188800).

Almost surely, 2^393493226401 is an apocalyptic number.

It is an amenable number.

393493226401 is a deficient number, since it is larger than the sum of its proper divisors (36525794399).

393493226401 is a wasteful number, since it uses less digits than its factorization.

393493226401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18860.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 393493226401 in words is "three hundred ninety-three billion, four hundred ninety-three million, two hundred twenty-six thousand, four hundred one".