544247426 has 4 divisors (see below), whose sum is σ = 816371142. Its totient is φ = 272123712.

The previous prime is 544247399. The next prime is 544247443. The reversal of 544247426 is 624742445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 519794401 + 24453025 = 22799^2 + 4945^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 544247426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136061855 + ... + 136061858.

Almost surely, 2^544247426 is an apocalyptic number.

544247426 is a deficient number, since it is larger than the sum of its proper divisors (272123716).

544247426 is a wasteful number, since it uses less digits than its factorization.

544247426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272123715.

The product of its digits is 215040, while the sum is 38.

The square root of 544247426 is about 23329.1111275162. Note that the first 4 decimals coincide. The cubic root of 544247426 is about 816.4547648103.

The spelling of 544247426 in words is "five hundred forty-four million, two hundred forty-seven thousand, four hundred twenty-six".