2190557229 has 16 divisors (see below), whose sum is σ = 3338649600. Its totient is φ = 1251500400.

The previous prime is 2190557221. The next prime is 2190557231. The reversal of 2190557229 is 9227550912.

It is not a de Polignac number, because 2190557229 - 2³ = 2190557221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190557221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186472 + ... + 197870.

It is an arithmetic number, because the mean of its divisors is an integer number (208665600).

Almost surely, 2^2190557229 is an apocalyptic number.

It is an amenable number.

2190557229 is a deficient number, since it is larger than the sum of its proper divisors (1148092371).

2190557229 is a wasteful number, since it uses less digits than its factorization.

2190557229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20560.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 2190557229 is about 46803.3890760060. The cubic root of 2190557229 is about 1298.7279922769.

The spelling of 2190557229 in words is "two billion, one hundred ninety million, five hundred fifty-seven thousand, two hundred twenty-nine".