2144195520 has 56 divisors (see below), whose sum is σ = 6807823824. Its totient is φ = 571785216.

The previous prime is 2144195519. The next prime is 2144195531. The reversal of 2144195520 is 255914412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115809 + ... + 1117728.

Almost surely, 2^2144195520 is an apocalyptic number.

2144195520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144195520 is an abundant number, since it is smaller than the sum of its proper divisors (4663628304).

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

2144195520 is a wasteful number, since it uses less digits than its factorization.

2144195520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233557 (or 2233547 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2144195520 is about 46305.4588574609. The cubic root of 2144195520 is about 1289.5003413147.

The spelling of 2144195520 in words is "two billion, one hundred forty-four million, one hundred ninety-five thousand, five hundred twenty".