61444002 has 16 divisors (see below), whose sum is σ = 122965632. Its totient is φ = 20468400.

The previous prime is 61443989. The next prime is 61444007. The reversal of 61444002 is 20044416.

It is a self number, because there is not a number n which added to its sum of digits gives 61444002.

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 7 ways as a sum of consecutive naturals, for example, 14752 + ... + 18452.

It is an arithmetic number, because the mean of its divisors is an integer number (7685352).

Almost surely, 2^61444002 is an apocalyptic number.

61444002 is an abundant number, since it is smaller than the sum of its proper divisors (61521630).

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

61444002 is a wasteful number, since it uses less digits than its factorization.

61444002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 61444002 is about 7838.6224555084. The cubic root of 61444002 is about 394.6024992248.

Adding to 61444002 its reverse (20044416), we get a palindrome (81488418).

The spelling of 61444002 in words is "sixty-one million, four hundred forty-four thousand, two".