2042790 has 32 divisors (see below), whose sum is σ = 4946400. Its totient is φ = 539904.

The previous prime is 2042783. The next prime is 2042797. The reversal of 2042790 is 972402.

It is an interprime number because it is at equal distance from previous prime (2042783) and next prime (2042797).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042797) by changing a digit.

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, 4242 + ... + 4698.

It is an arithmetic number, because the mean of its divisors is an integer number (154575).

2^2042790 is an apocalyptic number.

2042790 is an abundant number, since it is smaller than the sum of its proper divisors (2903610).

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

2042790 is a wasteful number, since it uses less digits than its factorization.

2042790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2042790 is about 1429.2620473517. The cubic root of 2042790 is about 126.8843057392.

The spelling of 2042790 in words is "two million, forty-two thousand, seven hundred ninety".