64444030 has 32 divisors (see below), whose sum is σ = 132871680. Its totient is φ = 22044960.

The previous prime is 64444007. The next prime is 64444031. The reversal of 64444030 is 3044446.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64443986 and 64444004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64444031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43441 + ... + 44899.

It is an arithmetic number, because the mean of its divisors is an integer number (4152240).

Almost surely, 2^64444030 is an apocalyptic number.

64444030 is an abundant number, since it is smaller than the sum of its proper divisors (68427650).

64444030 is a wasteful number, since it uses less digits than its factorization.

64444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 64444030 is about 8027.7039058500. The cubic root of 64444030 is about 400.9229313565.

Adding to 64444030 its reverse (3044446), we get a palindrome (67488476).

The spelling of 64444030 in words is "sixty-four million, four hundred forty-four thousand, thirty".