3405255421 has 8 divisors (see below), whose sum is σ = 3521733120. Its totient is φ = 3290612208.

The previous prime is 3405255407. The next prime is 3405255439. The reversal of 3405255421 is 1245525043.

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

It is a cyclic number.

It is not a de Polignac number, because 3405255421 - 2¹³ = 3405247229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405255401) 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, 454846 + ... + 462271.

It is an arithmetic number, because the mean of its divisors is an integer number (440216640).

Almost surely, 2^3405255421 is an apocalyptic number.

It is an amenable number.

3405255421 is a deficient number, since it is larger than the sum of its proper divisors (116477699).

3405255421 is an equidigital number, since it uses as much as digits as its factorization.

3405255421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917243.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 3405255421 is about 58354.5664108645. The cubic root of 3405255421 is about 1504.4689569857.

The spelling of 3405255421 in words is "three billion, four hundred five million, two hundred fifty-five thousand, four hundred twenty-one".