3420039 has 8 divisors (see below), whose sum is σ = 5211520. Its totient is φ = 1954296.

The previous prime is 3420023. The next prime is 3420047. The reversal of 3420039 is 9300243.

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

It is not a de Polignac number, because 3420039 - 2⁴ = 3420023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 162859 = 3420039 / (3 + 4 + 2 + 0 + 0 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3419997 and 3420024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420059) 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, 81409 + ... + 81450.

It is an arithmetic number, because the mean of its divisors is an integer number (651440).

Almost surely, 2^3420039 is an apocalyptic number.

3420039 is a deficient number, since it is larger than the sum of its proper divisors (1791481).

3420039 is a wasteful number, since it uses less digits than its factorization.

3420039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162869.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3420039 is about 1849.3347452530. The cubic root of 3420039 is about 150.6642981546.

The spelling of 3420039 in words is "three million, four hundred twenty thousand, thirty-nine".