3420249 has 24 divisors (see below), whose sum is σ = 5417280. Its totient is φ = 1913184.

The previous prime is 3420239. The next prime is 3420251. The reversal of 3420249 is 9420243.

It is a happy number.

It is not a de Polignac number, because 3420249 - 2⁷ = 3420121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3420239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7572 + ... + 8010.

It is an arithmetic number, because the mean of its divisors is an integer number (225720).

Almost surely, 2^3420249 is an apocalyptic number.

It is an amenable number.

3420249 is a deficient number, since it is larger than the sum of its proper divisors (1997031).

3420249 is a wasteful number, since it uses less digits than its factorization.

3420249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3420249 is about 1849.3915215551. The cubic root of 3420249 is about 150.6673818285.

The spelling of 3420249 in words is "three million, four hundred twenty thousand, two hundred forty-nine".