2628490188 has 12 divisors (see below), whose sum is σ = 6133143800. Its totient is φ = 876163392.

The previous prime is 2628490187. The next prime is 2628490243. The reversal of 2628490188 is 8810948262.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2628490187) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 109520413 + ... + 109520436.

Almost surely, 2^2628490188 is an apocalyptic number.

It is an amenable number.

2628490188 is an abundant number, since it is smaller than the sum of its proper divisors (3504653612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2628490188 is a wasteful number, since it uses less digits than its factorization.

2628490188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219040856 (or 219040854 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2628490188 is about 51268.8032628030. The cubic root of 2628490188 is about 1380.0731929253.

The spelling of 2628490188 in words is "two billion, six hundred twenty-eight million, four hundred ninety thousand, one hundred eighty-eight".