2190424 has 8 divisors (see below), whose sum is σ = 4107060. Its totient is φ = 1095208.

The previous prime is 2190413. The next prime is 2190427. The reversal of 2190424 is 4240912.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2190395 and 2190404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136894 + ... + 136909.

2^2190424 is an apocalyptic number.

It is an amenable number.

2190424 is a deficient number, since it is larger than the sum of its proper divisors (1916636).

2190424 is a wasteful number, since it uses less digits than its factorization.

2190424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273809 (or 273805 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2190424 is about 1480.0081080859. The cubic root of 2190424 is about 129.8701662334.

The spelling of 2190424 in words is "two million, one hundred ninety thousand, four hundred twenty-four".