3420491 has 8 divisors (see below), whose sum is σ = 3600384. Its totient is φ = 3243240.

The previous prime is 3420481. The next prime is 3420493. The reversal of 3420491 is 1940243.

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

It is a cyclic number.

It is not a de Polignac number, because 3420491 - 2⁶ = 3420427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 3506.

It is an arithmetic number, because the mean of its divisors is an integer number (450048).

Almost surely, 2^3420491 is an apocalyptic number.

3420491 is a deficient number, since it is larger than the sum of its proper divisors (179893).

3420491 is a wasteful number, since it uses less digits than its factorization.

3420491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3420491 is about 1849.4569473226. The cubic root of 3420491 is about 150.6709352390.

The spelling of 3420491 in words is "three million, four hundred twenty thousand, four hundred ninety-one".