2159445624 has 32 divisors (see below), whose sum is σ = 6169845120. Its totient is φ = 616984416.

The previous prime is 2159445623. The next prime is 2159445637. The reversal of 2159445624 is 4265449512.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159445623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6426754 + ... + 6427089.

It is an arithmetic number, because the mean of its divisors is an integer number (192807660).

Almost surely, 2^2159445624 is an apocalyptic number.

2159445624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2159445624 is an abundant number, since it is smaller than the sum of its proper divisors (4010399496).

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

2159445624 is a wasteful number, since it uses less digits than its factorization.

2159445624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853859 (or 12853855 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 2159445624 is about 46469.8356356034. The cubic root of 2159445624 is about 1292.5502150302.

The spelling of 2159445624 in words is "two billion, one hundred fifty-nine million, four hundred forty-five thousand, six hundred twenty-four".