45649869 has 4 divisors (see below), whose sum is σ = 60866496. Its totient is φ = 30433244.

The previous prime is 45649859. The next prime is 45649883. The reversal of 45649869 is 96894654.

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 45649869 - 2¹⁵ = 45617101 is a prime.

It is a super-2 number, since 2×45649869² = 4167821079434322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45649859) 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, 7608309 + ... + 7608314.

It is an arithmetic number, because the mean of its divisors is an integer number (15216624).

Almost surely, 2^45649869 is an apocalyptic number.

It is an amenable number.

45649869 is a deficient number, since it is larger than the sum of its proper divisors (15216627).

45649869 is a wasteful number, since it uses less digits than its factorization.

45649869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15216626.

The product of its digits is 1866240, while the sum is 51.

The square root of 45649869 is about 6756.4686782372. The cubic root of 45649869 is about 357.3933866321.

The spelling of 45649869 in words is "forty-five million, six hundred forty-nine thousand, eight hundred sixty-nine".