3420237 has 16 divisors (see below), whose sum is σ = 4718592. Its totient is φ = 2202480.

The previous prime is 3420227. The next prime is 3420239. The reversal of 3420237 is 7320243.

It is a happy number.

It is not a de Polignac number, because 3420237 - 2¹² = 3416141 is a prime.

It is a super-2 number, since 2×3420237² = 23396042272338, which contains 22 as substring.

3420237 is a lucky number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 17812 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (294912).

Almost surely, 2^3420237 is an apocalyptic number.

It is an amenable number.

3420237 is a deficient number, since it is larger than the sum of its proper divisors (1298355).

3420237 is a wasteful number, since it uses less digits than its factorization.

3420237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 3420237 is about 1849.3882772420. The cubic root of 3420237 is about 150.6672056219.

The spelling of 3420237 in words is "three million, four hundred twenty thousand, two hundred thirty-seven".