544807642 has 8 divisors (see below), whose sum is σ = 818014932. Its totient is φ = 272136000.

The previous prime is 544807639. The next prime is 544807643. The reversal of 544807642 is 246708445.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 528494121 + 16313521 = 22989^2 + 4039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 544807595 and 544807604.

It is not an unprimeable number, because it can be changed into a prime (544807643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131359 + ... + 135442.

Almost surely, 2^544807642 is an apocalyptic number.

544807642 is a deficient number, since it is larger than the sum of its proper divisors (273207290).

544807642 is a wasteful number, since it uses less digits than its factorization.

544807642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267824.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 544807642 is about 23341.1148405555. The cubic root of 544807642 is about 816.7348054397.

The spelling of 544807642 in words is "five hundred forty-four million, eight hundred seven thousand, six hundred forty-two".