2145380970 has 32 divisors (see below), whose sum is σ = 5183481600. Its totient is φ = 568260800.

The previous prime is 2145380969. The next prime is 2145380987. The reversal of 2145380970 is 790835412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235506 + ... + 244445.

It is an arithmetic number, because the mean of its divisors is an integer number (161983800).

Almost surely, 2^2145380970 is an apocalyptic number.

2145380970 is an abundant number, since it is smaller than the sum of its proper divisors (3038100630).

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

2145380970 is a wasteful number, since it uses less digits than its factorization.

2145380970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480110.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2145380970 is about 46318.2574154080. The cubic root of 2145380970 is about 1289.7379372711.

The spelling of 2145380970 in words is "two billion, one hundred forty-five million, three hundred eighty thousand, nine hundred seventy".