4551642 has 12 divisors (see below), whose sum is σ = 9861930. Its totient is φ = 1517208.

The previous prime is 4551641. The next prime is 4551649. The reversal of 4551642 is 2461554.

It can be written as a sum of positive squares in only one way, i.e., 3272481 + 1279161 = 1809^2 + 1131^2 .

It is not an unprimeable number, because it can be changed into a prime (4551641) 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 5 ways as a sum of consecutive naturals, for example, 126417 + ... + 126452.

Almost surely, 2^4551642 is an apocalyptic number.

4551642 is an abundant number, since it is smaller than the sum of its proper divisors (5310288).

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

4551642 is a wasteful number, since it uses less digits than its factorization.

4551642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252877 (or 252874 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 4551642 is about 2133.4577567883. The cubic root of 4551642 is about 165.7255104650.

The spelling of 4551642 in words is "four million, five hundred fifty-one thousand, six hundred forty-two".