2213154780 has 24 divisors (see below), whose sum is σ = 6196833552. Its totient is φ = 590174592.

The previous prime is 2213154773. The next prime is 2213154781. The reversal of 2213154780 is 874513122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213154781) 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 7 ways as a sum of consecutive naturals, for example, 18442897 + ... + 18443016.

It is an arithmetic number, because the mean of its divisors is an integer number (258201398).

Almost surely, 2^2213154780 is an apocalyptic number.

2213154780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213154780 is an abundant number, since it is smaller than the sum of its proper divisors (3983678772).

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

2213154780 is a wasteful number, since it uses less digits than its factorization.

2213154780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36885925 (or 36885923 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2213154780 is about 47044.1790235519. The cubic root of 2213154780 is about 1303.1785690358.

The spelling of 2213154780 in words is "two billion, two hundred thirteen million, one hundred fifty-four thousand, seven hundred eighty".