2061590 has 32 divisors (see below), whose sum is σ = 4009824. Its totient is φ = 760320.

The previous prime is 2061589. The next prime is 2061599. The reversal of 2061590 is 951602.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061599) 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, 11300 + ... + 11480.

It is an arithmetic number, because the mean of its divisors is an integer number (125307).

2^2061590 is an apocalyptic number.

2061590 is a deficient number, since it is larger than the sum of its proper divisors (1948234).

2061590 is a wasteful number, since it uses less digits than its factorization.

2061590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 2061590 is about 1435.8238053466. The cubic root of 2061590 is about 127.2723606978.

The spelling of 2061590 in words is "two million, sixty-one thousand, five hundred ninety".