2149613220 has 48 divisors (see below), whose sum is σ = 6132490560. Its totient is φ = 562413696.

The previous prime is 2149613171. The next prime is 2149613227. The reversal of 2149613220 is 223169412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2149613227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334810 + ... + 341169.

It is an arithmetic number, because the mean of its divisors is an integer number (127760220).

Almost surely, 2^2149613220 is an apocalyptic number.

2149613220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2149613220 is an abundant number, since it is smaller than the sum of its proper divisors (3982877340).

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

2149613220 is a wasteful number, since it uses less digits than its factorization.

2149613220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676044 (or 676042 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2149613220 is about 46363.9215338824. The cubic root of 2149613220 is about 1290.5854802822.

It can be divided in two parts, 21496 and 13220, that added together give a triangular number (34716 = T₂₆₃).

The spelling of 2149613220 in words is "two billion, one hundred forty-nine million, six hundred thirteen thousand, two hundred twenty".