2145493792 has 48 divisors (see below), whose sum is σ = 4552866360. Its totient is φ = 989356032.

The previous prime is 2145493781. The next prime is 2145493793. The reversal of 2145493792 is 2973945412.

It can be written as a sum of positive squares in 4 ways, for example, as 1354534416 + 790959376 = 36804^2 + 28124^2 .

It is a super-2 number, since 2×2145493792² = 9206287223021078528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145493793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942768 + ... + 945040.

Almost surely, 2^2145493792 is an apocalyptic number.

It is an amenable number.

2145493792 is an abundant number, since it is smaller than the sum of its proper divisors (2407372568).

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

2145493792 is a wasteful number, since it uses less digits than its factorization.

2145493792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4557 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 2145493792 is about 46319.4752992734. The cubic root of 2145493792 is about 1289.7605452624.

The spelling of 2145493792 in words is "two billion, one hundred forty-five million, four hundred ninety-three thousand, seven hundred ninety-two".