2190451 has 8 divisors (see below), whose sum is σ = 2306304. Its totient is φ = 2076360.

The previous prime is 2190439. The next prime is 2190469. The reversal of 2190451 is 1540912.

2190451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2190451 - 2⁹ = 2189939 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (2190481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650 + ... + 3376.

It is an arithmetic number, because the mean of its divisors is an integer number (288288).

2^2190451 is an apocalyptic number.

2190451 is a deficient number, since it is larger than the sum of its proper divisors (115853).

2190451 is a wasteful number, since it uses less digits than its factorization.

2190451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 2190451 is about 1480.0172296294. The cubic root of 2190451 is about 129.8706998409.

The spelling of 2190451 in words is "two million, one hundred ninety thousand, four hundred fifty-one".