45043669 has 4 divisors (see below), whose sum is σ = 49138560. Its totient is φ = 40948780.

The previous prime is 45043657. The next prime is 45043673. The reversal of 45043669 is 96634054.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 45043669 - 2⁹ = 45043157 is a prime.

It is a super-2 number, since 2×45043669² = 4057864233963122, 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 (45043639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047429 + ... + 2047450.

It is an arithmetic number, because the mean of its divisors is an integer number (12284640).

Almost surely, 2^45043669 is an apocalyptic number.

It is an amenable number.

45043669 is a deficient number, since it is larger than the sum of its proper divisors (4094891).

45043669 is a wasteful number, since it uses less digits than its factorization.

45043669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094890.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 45043669 is about 6711.4580383103. The cubic root of 45043669 is about 355.8043495282.

The spelling of 45043669 in words is "forty-five million, forty-three thousand, six hundred sixty-nine".