2145620352 has 32 divisors (see below), whose sum is σ = 5699305080. Its totient is φ = 715206656.

The previous prime is 2145620339. The next prime is 2145620357. The reversal of 2145620352 is 2530265412.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145620357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793393 + ... + 2794160.

Almost surely, 2^2145620352 is an apocalyptic number.

It is an amenable number.

2145620352 is an abundant number, since it is smaller than the sum of its proper divisors (3553684728).

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

2145620352 is an equidigital number, since it uses as much as digits as its factorization.

2145620352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587570 (or 5587558 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2145620352 is about 46320.8414431344. The cubic root of 2145620352 is about 1289.7859052185.

Adding to 2145620352 its reverse (2530265412), we get a palindrome (4675885764).

The spelling of 2145620352 in words is "two billion, one hundred forty-five million, six hundred twenty thousand, three hundred fifty-two".