2190538 has 8 divisors (see below), whose sum is σ = 3755232. Its totient is φ = 938796.

The previous prime is 2190533. The next prime is 2190541. The reversal of 2190538 is 8350912.

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

It is not an unprimeable number, because it can be changed into a prime (2190533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78220 + ... + 78247.

It is an arithmetic number, because the mean of its divisors is an integer number (469404).

2^2190538 is an apocalyptic number.

2190538 is a deficient number, since it is larger than the sum of its proper divisors (1564694).

2190538 is a wasteful number, since it uses less digits than its factorization.

2190538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156476.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2190538 is about 1480.0466208873. The cubic root of 2190538 is about 129.8724192131.

The spelling of 2190538 in words is "two million, one hundred ninety thousand, five hundred thirty-eight".