561339246 has 24 divisors (see below), whose sum is σ = 1215683640. Its totient is φ = 172719456.

The previous prime is 561339239. The next prime is 561339293. The reversal of 561339246 is 642933165.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275781 + ... + 277808.

It is an arithmetic number, because the mean of its divisors is an integer number (50653485).

Almost surely, 2^561339246 is an apocalyptic number.

561339246 is an abundant number, since it is smaller than the sum of its proper divisors (654344394).

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

561339246 is a wasteful number, since it uses less digits than its factorization.

561339246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553620 (or 553607 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 561339246 is about 23692.5989709867. The cubic root of 561339246 is about 824.9136100541.

The spelling of 561339246 in words is "five hundred sixty-one million, three hundred thirty-nine thousand, two hundred forty-six".