2190146 has 16 divisors (see below), whose sum is σ = 3807744. Its totient is φ = 925344.

The previous prime is 2190143. The next prime is 2190157. The reversal of 2190146 is 6410912.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2190143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (237984).

2^2190146 is an apocalyptic number.

2190146 is a deficient number, since it is larger than the sum of its proper divisors (1617598).

2190146 is a wasteful number, since it uses less digits than its factorization.

2190146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2190146 is about 1479.9141867014. The cubic root of 2190146 is about 129.8646717974.

The spelling of 2190146 in words is "two million, one hundred ninety thousand, one hundred forty-six".