2188948790 has 64 divisors (see below), whose sum is σ = 4569716736. Its totient is φ = 739452672.

The previous prime is 2188948763. The next prime is 2188948819. The reversal of 2188948790 is 978498812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1679279 + ... + 1680581.

It is an arithmetic number, because the mean of its divisors is an integer number (71401824).

Almost surely, 2^2188948790 is an apocalyptic number.

2188948790 is an abundant number, since it is smaller than the sum of its proper divisors (2380767946).

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

2188948790 is a wasteful number, since it uses less digits than its factorization.

2188948790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The square root of 2188948790 is about 46786.2029876330. The cubic root of 2188948790 is about 1298.4100463519.

The spelling of 2188948790 in words is "two billion, one hundred eighty-eight million, nine hundred forty-eight thousand, seven hundred ninety".