2145445302 has 96 divisors (see below), whose sum is σ = 5864189184. Its totient is φ = 514382400.

The previous prime is 2145445301. The next prime is 2145445307. The reversal of 2145445302 is 2035445412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145445302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145445301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16527 + ... + 67557.

It is an arithmetic number, because the mean of its divisors is an integer number (61085304).

Almost surely, 2^2145445302 is an apocalyptic number.

2145445302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145445302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2932094592).

2145445302 is an abundant number, since it is smaller than the sum of its proper divisors (3718743882).

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

2145445302 is a wasteful number, since it uses less digits than its factorization.

2145445302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51074 (or 51067 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2145445302 is about 46318.9518663797. The cubic root of 2145445302 is about 1289.7508286243.

The spelling of 2145445302 in words is "two billion, one hundred forty-five million, four hundred forty-five thousand, three hundred two".