2190574 has 4 divisors (see below), whose sum is σ = 3285864. Its totient is φ = 1095286.

The previous prime is 2190541. The next prime is 2190577. The reversal of 2190574 is 4750912.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2190574² = 9597228898952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547642 + ... + 547645.

It is an arithmetic number, because the mean of its divisors is an integer number (821466).

2^2190574 is an apocalyptic number.

2190574 is a deficient number, since it is larger than the sum of its proper divisors (1095290).

2190574 is a wasteful number, since it uses less digits than its factorization.

2190574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095289.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2190574 is about 1480.0587826164. The cubic root of 2190574 is about 129.8731306641.

The spelling of 2190574 in words is "two million, one hundred ninety thousand, five hundred seventy-four".