45289949 has 4 divisors (see below), whose sum is σ = 45311964. Its totient is φ = 45267936.

The previous prime is 45289913. The next prime is 45289957. The reversal of 45289949 is 94998254.

It is a happy number.

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 10562500 + 34727449 = 3250^2 + 5893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45289949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45289897 and 45289906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45289969) 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, 7562 + ... + 12155.

It is an arithmetic number, because the mean of its divisors is an integer number (11327991).

Almost surely, 2^45289949 is an apocalyptic number.

It is an amenable number.

45289949 is a deficient number, since it is larger than the sum of its proper divisors (22015).

45289949 is a wasteful number, since it uses less digits than its factorization.

45289949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22014.

The product of its digits is 933120, while the sum is 50.

The square root of 45289949 is about 6729.7807542297. The cubic root of 45289949 is about 356.4516345366.

The spelling of 45289949 in words is "forty-five million, two hundred eighty-nine thousand, nine hundred forty-nine".