61444006 has 12 divisors (see below), whose sum is σ = 99801612. Its totient is φ = 28358616.

The previous prime is 61443989. The next prime is 61444007. The reversal of 61444006 is 60044416.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61444007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90556 + ... + 91231.

It is an arithmetic number, because the mean of its divisors is an integer number (8316801).

Almost surely, 2^61444006 is an apocalyptic number.

61444006 is a deficient number, since it is larger than the sum of its proper divisors (38357606).

61444006 is a wasteful number, since it uses less digits than its factorization.

61444006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181815 (or 181802 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 61444006 is about 7838.6227106552. The cubic root of 61444006 is about 394.6025077877.

The spelling of 61444006 in words is "sixty-one million, four hundred forty-four thousand, six".