2189461466 has 16 divisors (see below), whose sum is σ = 3461294400. Its totient is φ = 1035838368.

The previous prime is 2189461451. The next prime is 2189461507. The reversal of 2189461466 is 6641649812.

It is a happy number.

It is a super-2 number, since 2×2189461466² = 9587483022197738312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2189461466.

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, 3731 + ... + 66278.

It is an arithmetic number, because the mean of its divisors is an integer number (216330900).

Almost surely, 2^2189461466 is an apocalyptic number.

2189461466 is a deficient number, since it is larger than the sum of its proper divisors (1271832934).

2189461466 is a wasteful number, since it uses less digits than its factorization.

2189461466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70853.

The product of its digits is 497664, while the sum is 47.

The square root of 2189461466 is about 46791.6815897869. The cubic root of 2189461466 is about 1298.5114057670.

The spelling of 2189461466 in words is "two billion, one hundred eighty-nine million, four hundred sixty-one thousand, four hundred sixty-six".