393098381 has 8 divisors (see below), whose sum is σ = 426570144. Its totient is φ = 360088560.

The previous prime is 393098341. The next prime is 393098399. The reversal of 393098381 is 183890393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 393098381 - 2⁶ = 393098317 is a prime.

It is a super-2 number, since 2×393098381² = 309052674289642322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393098341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113711 + ... + 117116.

It is an arithmetic number, because the mean of its divisors is an integer number (53321268).

Almost surely, 2^393098381 is an apocalyptic number.

It is an amenable number.

393098381 is a deficient number, since it is larger than the sum of its proper divisors (33471763).

393098381 is a wasteful number, since it uses less digits than its factorization.

393098381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230971.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 393098381 is about 19826.7087788165. The cubic root of 393098381 is about 732.5440609962.

The spelling of 393098381 in words is "three hundred ninety-three million, ninety-eight thousand, three hundred eighty-one".