2890742 has 4 divisors (see below), whose sum is σ = 4336116. Its totient is φ = 1445370.

The previous prime is 2890739. The next prime is 2890753. The reversal of 2890742 is 2470982.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2890699 and 2890708.

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 as a sum of consecutive naturals, namely, 722684 + ... + 722687.

It is an arithmetic number, because the mean of its divisors is an integer number (1084029).

2^2890742 is an apocalyptic number.

2890742 is a deficient number, since it is larger than the sum of its proper divisors (1445374).

2890742 is a wasteful number, since it uses less digits than its factorization.

2890742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445373.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2890742 is about 1700.2182212881. The cubic root of 2890742 is about 142.4524022832.

The spelling of 2890742 in words is "two million, eight hundred ninety thousand, seven hundred forty-two".