441690638 has 8 divisors (see below), whose sum is σ = 673765560. Its totient is φ = 217102120.

The previous prime is 441690637. The next prime is 441690679. The reversal of 441690638 is 836096144.

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

It is a junction number, because it is equal to n+sod(n) for n = 441690595 and 441690604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441690637) 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, 1871453 + ... + 1871688.

It is an arithmetic number, because the mean of its divisors is an integer number (84220695).

Almost surely, 2^441690638 is an apocalyptic number.

441690638 is a deficient number, since it is larger than the sum of its proper divisors (232074922).

441690638 is a wasteful number, since it uses less digits than its factorization.

441690638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743202.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 441690638 is about 21016.4373289100. The cubic root of 441690638 is about 761.5634010564.

The spelling of 441690638 in words is "four hundred forty-one million, six hundred ninety thousand, six hundred thirty-eight".