3840745469 has 4 divisors (see below), whose sum is σ = 4189904160. Its totient is φ = 3491586780.

The previous prime is 3840745463. The next prime is 3840745507. The reversal of 3840745469 is 9645470483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3840745469 - 2²⁸ = 3572310013 is a prime.

It is a super-2 number, since 2×3840745469² = 29502651515288059922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840745463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174579329 + ... + 174579350.

It is an arithmetic number, because the mean of its divisors is an integer number (1047476040).

Almost surely, 2^3840745469 is an apocalyptic number.

It is an amenable number.

3840745469 is a deficient number, since it is larger than the sum of its proper divisors (349158691).

3840745469 is a wasteful number, since it uses less digits than its factorization.

3840745469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349158690.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 3840745469 is about 61973.7482245507. The cubic root of 3840745469 is about 1566.0483836770.

The spelling of 3840745469 in words is "three billion, eight hundred forty million, seven hundred forty-five thousand, four hundred sixty-nine".