45657649 has 4 divisors (see below), whose sum is σ = 46084464. Its totient is φ = 45230836.

The previous prime is 45657613. The next prime is 45657659. The reversal of 45657649 is 94675654.

45657649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45657649 - 2⁹ = 45657137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45657599 and 45657608.

It is not an unprimeable number, because it can be changed into a prime (45657659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213247 + ... + 213460.

It is an arithmetic number, because the mean of its divisors is an integer number (11521116).

Almost surely, 2^45657649 is an apocalyptic number.

It is an amenable number.

45657649 is a deficient number, since it is larger than the sum of its proper divisors (426815).

45657649 is a wasteful number, since it uses less digits than its factorization.

45657649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426814.

The product of its digits is 907200, while the sum is 46.

The square root of 45657649 is about 6757.0443982558. The cubic root of 45657649 is about 357.4136887174.

The spelling of 45657649 in words is "forty-five million, six hundred fifty-seven thousand, six hundred forty-nine".