45186646 has 16 divisors (see below), whose sum is σ = 73296576. Its totient is φ = 20811136.

The previous prime is 45186637. The next prime is 45186649. The reversal of 45186646 is 64668154.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 45186599 and 45186608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45186649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12541 + ... + 15736.

It is an arithmetic number, because the mean of its divisors is an integer number (4581036).

Almost surely, 2^45186646 is an apocalyptic number.

45186646 is a deficient number, since it is larger than the sum of its proper divisors (28109930).

45186646 is a wasteful number, since it uses less digits than its factorization.

45186646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343.

The product of its digits is 138240, while the sum is 40.

The square root of 45186646 is about 6722.1013083708. The cubic root of 45186646 is about 356.1804150128.

The spelling of 45186646 in words is "forty-five million, one hundred eighty-six thousand, six hundred forty-six".