3420490 has 8 divisors (see below), whose sum is σ = 6156900. Its totient is φ = 1368192.

The previous prime is 3420481. The next prime is 3420493. The reversal of 3420490 is 940243.

It can be written as a sum of positive squares in 2 ways, for example, as 2778889 + 641601 = 1667^2 + 801^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3420493) 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, 171015 + ... + 171034.

Almost surely, 2^3420490 is an apocalyptic number.

3420490 is a deficient number, since it is larger than the sum of its proper divisors (2736410).

3420490 is a wasteful number, since it uses less digits than its factorization.

3420490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342056.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3420490 is about 1849.4566769730. The cubic root of 3420490 is about 150.6709205558.

The spelling of 3420490 in words is "three million, four hundred twenty thousand, four hundred ninety".