45556642 has 16 divisors (see below), whose sum is σ = 72066240. Its totient is φ = 21539088.

The previous prime is 45556631. The next prime is 45556649. The reversal of 45556642 is 24665554.

45556642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45556649) 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 7 ways as a sum of consecutive naturals, for example, 32643 + ... + 34009.

It is an arithmetic number, because the mean of its divisors is an integer number (4504140).

Almost surely, 2^45556642 is an apocalyptic number.

45556642 is a deficient number, since it is larger than the sum of its proper divisors (26509598).

45556642 is a wasteful number, since it uses less digits than its factorization.

45556642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265.

The product of its digits is 144000, while the sum is 37.

The square root of 45556642 is about 6749.5660601256. The cubic root of 45556642 is about 357.1499290485.

The spelling of 45556642 in words is "forty-five million, five hundred fifty-six thousand, six hundred forty-two".