3420442 has 4 divisors (see below), whose sum is σ = 5130666. Its totient is φ = 1710220.

The previous prime is 3420433. The next prime is 3420457. The reversal of 3420442 is 2440243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2440243 = 13 ⋅187711.

It can be written as a sum of positive squares in only one way, i.e., 3236401 + 184041 = 1799^2 + 429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855109 + ... + 855112.

Almost surely, 2^3420442 is an apocalyptic number.

3420442 is a deficient number, since it is larger than the sum of its proper divisors (1710224).

3420442 is a wasteful number, since it uses less digits than its factorization.

3420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710223.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 3420442 is about 1849.4437001434. The cubic root of 3420442 is about 150.6702157603.

Adding to 3420442 its reverse (2440243), we get a palindrome (5860685).

The spelling of 3420442 in words is "three million, four hundred twenty thousand, four hundred forty-two".