2154222884 has 12 divisors (see below), whose sum is σ = 4112607408. Its totient is φ = 979192200.

The previous prime is 2154222877. The next prime is 2154222911. The reversal of 2154222884 is 4882224512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24479762 + ... + 24479849.

It is an arithmetic number, because the mean of its divisors is an integer number (342717284).

Almost surely, 2^2154222884 is an apocalyptic number.

It is an amenable number.

2154222884 is a deficient number, since it is larger than the sum of its proper divisors (1958384524).

2154222884 is a wasteful number, since it uses less digits than its factorization.

2154222884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48959626 (or 48959624 counting only the distinct ones).

The product of its digits is 81920, while the sum is 38.

The square root of 2154222884 is about 46413.6066687345. The cubic root of 2154222884 is about 1291.5073388344.

The spelling of 2154222884 in words is "two billion, one hundred fifty-four million, two hundred twenty-two thousand, eight hundred eighty-four".