45647449 has 4 divisors (see below), whose sum is σ = 45662436. Its totient is φ = 45632464.

The previous prime is 45647429. The next prime is 45647471. The reversal of 45647449 is 94474654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4173849 + 41473600 = 2043^2 + 6440^2 .

It is a cyclic number.

It is not a de Polignac number, because 45647449 - 2⁷ = 45647321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45647419) 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, 1114 + ... + 9619.

It is an arithmetic number, because the mean of its divisors is an integer number (11415609).

Almost surely, 2^45647449 is an apocalyptic number.

It is an amenable number.

45647449 is a deficient number, since it is larger than the sum of its proper divisors (14987).

45647449 is a wasteful number, since it uses less digits than its factorization.

45647449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986.

The product of its digits is 483840, while the sum is 43.

The square root of 45647449 is about 6756.2895882281. The cubic root of 45647449 is about 357.3870711172.

The spelling of 45647449 in words is "forty-five million, six hundred forty-seven thousand, four hundred forty-nine".