3420438 has 16 divisors (see below), whose sum is σ = 7818240. Its totient is φ = 977256.

The previous prime is 3420433. The next prime is 3420457. The reversal of 3420438 is 8340243.

It is a super-2 number, since 2×3420438² = 23398792223688, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 4⁹ + 2¹³ + 0 + 4¹⁰ + 3⁷ + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420433) 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, 40678 + ... + 40761.

It is an arithmetic number, because the mean of its divisors is an integer number (488640).

Almost surely, 2^3420438 is an apocalyptic number.

3420438 is an abundant number, since it is smaller than the sum of its proper divisors (4397802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3420438 is a wasteful number, since it uses less digits than its factorization.

3420438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81451.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3420438 is about 1849.4426187368. The cubic root of 3420438 is about 150.6701570271.

The spelling of 3420438 in words is "three million, four hundred twenty thousand, four hundred thirty-eight".