3122742 has 32 divisors (see below), whose sum is σ = 7200000. Its totient is φ = 884448.

The previous prime is 3122737. The next prime is 3122761. The reversal of 3122742 is 2472213.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6009 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (225000).

Almost surely, 2^3122742 is an apocalyptic number.

3122742 is an abundant number, since it is smaller than the sum of its proper divisors (4077258).

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

3122742 is a wasteful number, since it uses less digits than its factorization.

3122742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660.

The product of its digits is 672, while the sum is 21.

The square root of 3122742 is about 1767.1281787126. The cubic root of 3122742 is about 146.1656654551.

Adding to 3122742 its reverse (2472213), we get a palindrome (5594955).

The spelling of 3122742 in words is "three million, one hundred twenty-two thousand, seven hundred forty-two".