45474949 has 16 divisors (see below), whose sum is σ = 52239600. Its totient is φ = 39214080.

The previous prime is 45474943. The next prime is 45474971. The reversal of 45474949 is 94947454.

45474949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3678724 + 41796225 = 1918^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 45474949 - 2⁵ = 45474917 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45474899 and 45474908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45474943) 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 15 ways as a sum of consecutive naturals, for example, 32239 + ... + 33619.

It is an arithmetic number, because the mean of its divisors is an integer number (3264975).

Almost surely, 2^45474949 is an apocalyptic number.

It is an amenable number.

45474949 is a deficient number, since it is larger than the sum of its proper divisors (6764651).

45474949 is a wasteful number, since it uses less digits than its factorization.

45474949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its digits is 725760, while the sum is 46.

The square root of 45474949 is about 6743.5116222929. The cubic root of 45474949 is about 356.9363187289.

The spelling of 45474949 in words is "forty-five million, four hundred seventy-four thousand, nine hundred forty-nine".