2190830945 has 8 divisors (see below), whose sum is σ = 2629376640. Its totient is φ = 1752411760.

The previous prime is 2190830933. The next prime is 2190830969. The reversal of 2190830945 is 5490380912.

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

It is not a de Polignac number, because 2190830945 - 2⁸ = 2190830689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11930 + ... + 67260.

It is an arithmetic number, because the mean of its divisors is an integer number (328672080).

Almost surely, 2^2190830945 is an apocalyptic number.

It is an amenable number.

2190830945 is a deficient number, since it is larger than the sum of its proper divisors (438545695).

2190830945 is an equidigital number, since it uses as much as digits as its factorization.

2190830945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63255.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2190830945 is about 46806.3130891550. The cubic root of 2190830945 is about 1298.7820832058.

The spelling of 2190830945 in words is "two billion, one hundred ninety million, eight hundred thirty thousand, nine hundred forty-five".