2067690 has 32 divisors (see below), whose sum is σ = 5005440. Its totient is φ = 546624.

The previous prime is 2067679. The next prime is 2067691. The reversal of 2067690 is 967602.

It is a super-2 number, since 2×2067690² = 8550683872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2067691) 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, 4491 + ... + 4929.

It is an arithmetic number, because the mean of its divisors is an integer number (156420).

2^2067690 is an apocalyptic number.

2067690 is an abundant number, since it is smaller than the sum of its proper divisors (2937750).

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

2067690 is a wasteful number, since it uses less digits than its factorization.

2067690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 2067690 is about 1437.9464524105. The cubic root of 2067690 is about 127.3977650275.

The spelling of 2067690 in words is "two million, sixty-seven thousand, six hundred ninety".