3405531 has 8 divisors (see below), whose sum is σ = 4556304. Its totient is φ = 2262560.

The previous prime is 3405529. The next prime is 3405547. The reversal of 3405531 is 1355043.

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 3405531 - 2¹ = 3405529 is a prime.

It is a super-2 number, since 2×3405531² = 23195282783922, which contains 22 as substring.

3405531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3405498 and 3405507.

It is not an unprimeable number, because it can be changed into a prime (3405131) 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, 840 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (569538).

Almost surely, 2^3405531 is an apocalyptic number.

3405531 is a deficient number, since it is larger than the sum of its proper divisors (1150773).

3405531 is a wasteful number, since it uses less digits than its factorization.

3405531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3405531 is about 1845.4080849503. The cubic root of 3405531 is about 150.4509540223.

The spelling of 3405531 in words is "three million, four hundred five thousand, five hundred thirty-one".