3405008381 has 8 divisors (see below), whose sum is σ = 3455251800. Its totient is φ = 3355110720.

The previous prime is 3405008359. The next prime is 3405008459. The reversal of 3405008381 is 1838005043.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 479172100 + 2925836281 = 21890^2 + 54091^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3405008381 is a prime.

It is a super-2 number, since 2×3405008381² = 23188164149360482322, 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 (3405028381) 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, 66566 + ... + 106023.

It is an arithmetic number, because the mean of its divisors is an integer number (431906475).

Almost surely, 2^3405008381 is an apocalyptic number.

It is an amenable number.

3405008381 is a deficient number, since it is larger than the sum of its proper divisors (50243419).

3405008381 is a wasteful number, since it uses less digits than its factorization.

3405008381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172879.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 3405008381 is about 58352.4496572338. The cubic root of 3405008381 is about 1504.4325746929.

The spelling of 3405008381 in words is "three billion, four hundred five million, eight thousand, three hundred eighty-one".