3390405 has 8 divisors (see below), whose sum is σ = 5424672. Its totient is φ = 1808208.

The previous prime is 3390391. The next prime is 3390427. The reversal of 3390405 is 5040933.

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

It is not a de Polignac number, because 3390405 - 2⁴ = 3390389 is a prime.

It is a super-2 number, since 2×3390405² = 22989692128050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112999 + ... + 113028.

It is an arithmetic number, because the mean of its divisors is an integer number (678084).

Almost surely, 2^3390405 is an apocalyptic number.

It is an amenable number.

3390405 is a deficient number, since it is larger than the sum of its proper divisors (2034267).

3390405 is a wasteful number, since it uses less digits than its factorization.

3390405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226035.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 3390405 is about 1841.3052435704. The cubic root of 3390405 is about 150.2278758642.

It can be divided in two parts, 3 and 390405, that multiplied together give a triangular number (1171215 = T₁₅₃₀).

The spelling of 3390405 in words is "three million, three hundred ninety thousand, four hundred five".