353864381 has 4 divisors (see below), whose sum is σ = 381084732. Its totient is φ = 326644032.

The previous prime is 353864377. The next prime is 353864383. The reversal of 353864381 is 183468353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183468353 = 1667 ⋅110059.

It can be written as a sum of positive squares in 2 ways, for example, as 98823481 + 255040900 = 9941^2 + 15970^2 .

It is not a de Polignac number, because 353864381 - 2² = 353864377 is a prime.

It is a super-2 number, since 2×353864381² = 250440000281026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353864383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13610156 + ... + 13610181.

It is an arithmetic number, because the mean of its divisors is an integer number (95271183).

Almost surely, 2^353864381 is an apocalyptic number.

It is an amenable number.

353864381 is a deficient number, since it is larger than the sum of its proper divisors (27220351).

353864381 is a wasteful number, since it uses less digits than its factorization.

353864381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27220350.

The product of its digits is 207360, while the sum is 41.

The square root of 353864381 is about 18811.2833427175. The cubic root of 353864381 is about 707.3140473648.

The spelling of 353864381 in words is "three hundred fifty-three million, eight hundred sixty-four thousand, three hundred eighty-one".