3400842 has 16 divisors (see below), whose sum is σ = 6884640. Its totient is φ = 1119792.

The previous prime is 3400841. The next prime is 3400843. The reversal of 3400842 is 2480043.

It is a happy number.

3400842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3400841) and next prime (3400843).

It is not an unprimeable number, because it can be changed into a prime (3400841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 3912.

It is an arithmetic number, because the mean of its divisors is an integer number (430290).

Almost surely, 2^3400842 is an apocalyptic number.

3400842 is an abundant number, since it is smaller than the sum of its proper divisors (3483798).

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

3400842 is a wasteful number, since it uses less digits than its factorization.

3400842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3400842 is about 1844.1371966315. The cubic root of 3400842 is about 150.3818714474.

Adding to 3400842 its reverse (2480043), we get a palindrome (5880885).

The spelling of 3400842 in words is "three million, four hundred thousand, eight hundred forty-two".