2990842 has 4 divisors (see below), whose sum is σ = 4486266. Its totient is φ = 1495420.

The previous prime is 2990839. The next prime is 2990879. The reversal of 2990842 is 2480992.

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

It can be written as a sum of positive squares in only one way, i.e., 1907161 + 1083681 = 1381^2 + 1041^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2990798 and 2990807.

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, 747709 + ... + 747712.

2^2990842 is an apocalyptic number.

2990842 is a deficient number, since it is larger than the sum of its proper divisors (1495424).

2990842 is a wasteful number, since it uses less digits than its factorization.

2990842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495423.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2990842 is about 1729.4051000272. The cubic root of 2990842 is about 144.0780505374.

The spelling of 2990842 in words is "two million, nine hundred ninety thousand, eight hundred forty-two".