3219742 has 4 divisors (see below), whose sum is σ = 4829616. Its totient is φ = 1609870.

The previous prime is 3219707. The next prime is 3219757. The reversal of 3219742 is 2479123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2479123 = 29 ⋅85487.

It is a self number, because there is not a number n which added to its sum of digits gives 3219742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804934 + ... + 804937.

It is an arithmetic number, because the mean of its divisors is an integer number (1207404).

Almost surely, 2^3219742 is an apocalyptic number.

3219742 is a deficient number, since it is larger than the sum of its proper divisors (1609874).

3219742 is a wasteful number, since it uses less digits than its factorization.

3219742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609873.

The product of its digits is 3024, while the sum is 28.

The square root of 3219742 is about 1794.3639541631. The cubic root of 3219742 is about 147.6636811700.

The spelling of 3219742 in words is "three million, two hundred nineteen thousand, seven hundred forty-two".