2045256269 has 8 divisors (see below), whose sum is σ = 2358121920. Its totient is φ = 1737562176.

The previous prime is 2045256139. The next prime is 2045256287. The reversal of 2045256269 is 9626525402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2045256269 - 2²⁴ = 2028479053 is a prime.

It is a super-2 number, since 2×2045256269² = 8366146411767600722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045256769) 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, 1292039 + ... + 1293620.

It is an arithmetic number, because the mean of its divisors is an integer number (294765240).

Almost surely, 2^2045256269 is an apocalyptic number.

It is an amenable number.

2045256269 is a deficient number, since it is larger than the sum of its proper divisors (312865651).

2045256269 is a wasteful number, since it uses less digits than its factorization.

2045256269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585779.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2045256269 is about 45224.5096048592. The cubic root of 2045256269 is about 1269.3534785642.

The spelling of 2045256269 in words is "two billion, forty-five million, two hundred fifty-six thousand, two hundred sixty-nine".