3405142 has 32 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 1451520.

The previous prime is 3405131. The next prime is 3405163. The reversal of 3405142 is 2415043.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30078 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (185535).

Almost surely, 2^3405142 is an apocalyptic number.

3405142 is a deficient number, since it is larger than the sum of its proper divisors (2531978).

3405142 is a wasteful number, since it uses less digits than its factorization.

3405142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 3405142 is about 1845.3026851983. The cubic root of 3405142 is about 150.4452253367.

Subtracting from 3405142 its reverse (2415043), we obtain a palindrome (990099).

The spelling of 3405142 in words is "three million, four hundred five thousand, one hundred forty-two".