2190234379 has 4 divisors (see below), whose sum is σ = 2193018184. Its totient is φ = 2187450576.

The previous prime is 2190234359. The next prime is 2190234383. The reversal of 2190234379 is 9734320912.

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

It is a cyclic number.

It is not a de Polignac number, because 2190234379 - 2²¹ = 2188137227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2190234349) 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, 1390722 + ... + 1392295.

It is an arithmetic number, because the mean of its divisors is an integer number (548254546).

Almost surely, 2^2190234379 is an apocalyptic number.

2190234379 is a deficient number, since it is larger than the sum of its proper divisors (2783805).

2190234379 is an equidigital number, since it uses as much as digits as its factorization.

2190234379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783804.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2190234379 is about 46799.9399465427. The cubic root of 2190234379 is about 1298.6641858433.

The spelling of 2190234379 in words is "two billion, one hundred ninety million, two hundred thirty-four thousand, three hundred seventy-nine".