2154228886 has 8 divisors (see below), whose sum is σ = 3286112040. Its totient is φ = 1058858208.

The previous prime is 2154228883. The next prime is 2154228887. The reversal of 2154228886 is 6888224512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154228883) 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, 9127971 + ... + 9128206.

It is an arithmetic number, because the mean of its divisors is an integer number (410764005).

Almost surely, 2^2154228886 is an apocalyptic number.

2154228886 is a deficient number, since it is larger than the sum of its proper divisors (1131883154).

2154228886 is a wasteful number, since it uses less digits than its factorization.

2154228886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18256238.

The product of its digits is 491520, while the sum is 46.

The square root of 2154228886 is about 46413.6713264529. The cubic root of 2154228886 is about 1291.5085382800.

The spelling of 2154228886 in words is "two billion, one hundred fifty-four million, two hundred twenty-eight thousand, eight hundred eighty-six".