61000442 has 8 divisors (see below), whose sum is σ = 91700532. Its totient is φ = 30433600.

The previous prime is 61000441. The next prime is 61000477. The reversal of 61000442 is 24400016.

It can be written as a sum of positive squares in 2 ways, for example, as 58507201 + 2493241 = 7649^2 + 1579^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61000442.

It is not an unprimeable number, because it can be changed into a prime (61000441) 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, 32159 + ... + 34002.

Almost surely, 2^61000442 is an apocalyptic number.

61000442 is a deficient number, since it is larger than the sum of its proper divisors (30700090).

61000442 is a wasteful number, since it uses less digits than its factorization.

61000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66624.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 61000442 is about 7810.2779720059. The cubic root of 61000442 is about 393.6506690903.

Adding to 61000442 its reverse (24400016), we get a palindrome (85400458).

The spelling of 61000442 in words is "sixty-one million, four hundred forty-two", and thus it is an aban number.