3402215 has 4 divisors (see below), whose sum is σ = 4082664. Its totient is φ = 2721768.

The previous prime is 3402211. The next prime is 3402233. The reversal of 3402215 is 5122043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5122043 = 229 ⋅22367.

It is a cyclic number.

It is not a de Polignac number, because 3402215 - 2² = 3402211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3402193 and 3402202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340217 + ... + 340226.

It is an arithmetic number, because the mean of its divisors is an integer number (1020666).

Almost surely, 2^3402215 is an apocalyptic number.

3402215 is a deficient number, since it is larger than the sum of its proper divisors (680449).

3402215 is an equidigital number, since it uses as much as digits as its factorization.

3402215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680448.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3402215 is about 1844.5094198729. The cubic root of 3402215 is about 150.4021062922.

Adding to 3402215 its reverse (5122043), we get a palindrome (8524258).

The spelling of 3402215 in words is "three million, four hundred two thousand, two hundred fifteen".