2190420527 has 4 divisors (see below), whose sum is σ = 2206409136. Its totient is φ = 2174431920.

The previous prime is 2190420521. The next prime is 2190420577. The reversal of 2190420527 is 7250240912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2190420527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2190420493 and 2190420502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190420521) 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, 7994099 + ... + 7994372.

It is an arithmetic number, because the mean of its divisors is an integer number (551602284).

Almost surely, 2^2190420527 is an apocalyptic number.

2190420527 is a deficient number, since it is larger than the sum of its proper divisors (15988609).

2190420527 is a wasteful number, since it uses less digits than its factorization.

2190420527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15988608.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 2190420527 is about 46801.9286675239. The cubic root of 2190420527 is about 1298.7009759536.

The spelling of 2190420527 in words is "two billion, one hundred ninety million, four hundred twenty thousand, five hundred twenty-seven".