2245043732409 has 45 divisors (see below), whose sum is σ = 3373055949087. Its totient is φ = 1488110293296.

The previous prime is 2245043732333. The next prime is 2245043732419. The reversal of 2245043732409 is 9042373405422.

The square root of 2245043732409 is 1498347.

It is a perfect power (a square), and thus also a powerful number.

2245043732409 is a `hidden beast` number, since 224 + 50 + 4 + 373 + 2 + 4 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2090924676009 + 154119056400 = 1446003^2 + 392580^2 .

It is not a de Polignac number, because 2245043732409 - 2³⁹ = 1695287918521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2245043732419) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3088092804 + ... + 3088093530.

Almost surely, 2^{2245043732409} is an apocalyptic number.

2245043732409 is the 1498347-th square number.

2245043732409 is the 749174-th centered octagonal number.

It is an amenable number.

2245043732409 is a deficient number, since it is larger than the sum of its proper divisors (1128012216678).

2245043732409 is an frugal number, since it uses more digits than its factorization.

2245043732409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 2245043732409 in words is "two trillion, two hundred forty-five billion, forty-three million, seven hundred thirty-two thousand, four hundred nine".