2189194046 has 32 divisors (see below), whose sum is σ = 3596503680. Its totient is φ = 993285216.

The previous prime is 2189194031. The next prime is 2189194061. The reversal of 2189194046 is 6404919812.

It is an interprime number because it is at equal distance from previous prime (2189194031) and next prime (2189194061).

It is a junction number, because it is equal to n+sod(n) for n = 2189193988 and 2189194006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147025 + ... + 1148931.

It is an arithmetic number, because the mean of its divisors is an integer number (112390740).

Almost surely, 2^2189194046 is an apocalyptic number.

2189194046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2189194046 is a deficient number, since it is larger than the sum of its proper divisors (1407309634).

2189194046 is a wasteful number, since it uses less digits than its factorization.

2189194046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2189194046 is about 46788.8239433307. The cubic root of 2189194046 is about 1298.4585370496.

The spelling of 2189194046 in words is "two billion, one hundred eighty-nine million, one hundred ninety-four thousand, forty-six".