45646452 has 18 divisors (see below), whose sum is σ = 115384178. Its totient is φ = 15215472.

The previous prime is 45646429. The next prime is 45646453. The reversal of 45646452 is 25464654.

45646452 is a `hidden beast` number, since 4 + 5 + 6 + 4 + 645 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45643536 + 2916 = 6756^2 + 54^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1267957 = 45646452 / (4 + 5 + 6 + 4 + 6 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45646453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 633943 + ... + 634014.

Almost surely, 2^45646452 is an apocalyptic number.

It is an amenable number.

45646452 is an abundant number, since it is smaller than the sum of its proper divisors (69737726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45646452 is a wasteful number, since it uses less digits than its factorization.

45646452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267967 (or 1267962 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 45646452 is about 6756.2158047238. The cubic root of 45646452 is about 357.3844691645.

The spelling of 45646452 in words is "forty-five million, six hundred forty-six thousand, four hundred fifty-two".