45005642 has 32 divisors (see below), whose sum is σ = 78727680. Its totient is φ = 19079280.

The previous prime is 45005621. The next prime is 45005669. The reversal of 45005642 is 24650054.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27203 + ... + 28809.

It is an arithmetic number, because the mean of its divisors is an integer number (2460240).

Almost surely, 2^45005642 is an apocalyptic number.

45005642 is a deficient number, since it is larger than the sum of its proper divisors (33722038).

45005642 is a wasteful number, since it uses less digits than its factorization.

45005642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 45005642 is about 6708.6244491699. The cubic root of 45005642 is about 355.7041950071.

Adding to 45005642 its reverse (24650054), we get a palindrome (69655696).

The spelling of 45005642 in words is "forty-five million, five thousand, six hundred forty-two".