3331405 has 32 divisors (see below), whose sum is σ = 5287680. Its totient is φ = 1950720.

The previous prime is 3331399. The next prime is 3331409. The reversal of 3331405 is 5041333.

It is not a de Polignac number, because 3331405 - 2¹³ = 3323213 is a prime.

It is a super-2 number, since 2×3331405² = 22196518548050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3331409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6291 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (165240).

Almost surely, 2^3331405 is an apocalyptic number.

3331405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3331405 is a deficient number, since it is larger than the sum of its proper divisors (1956275).

3331405 is a wasteful number, since it uses less digits than its factorization.

3331405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 3331405 is about 1825.2136861201. The cubic root of 3331405 is about 149.3513471883.

Adding to 3331405 its reverse (5041333), we get a palindrome (8372738).

The spelling of 3331405 in words is "three million, three hundred thirty-one thousand, four hundred five".