441663156 has 72 divisors (see below), whose sum is σ = 1259949600. Its totient is φ = 129218880.

The previous prime is 441663139. The next prime is 441663163. The reversal of 441663156 is 651366144.

It is a happy number.

441663156 is a `hidden beast` number, since 4 + 4 + 16 + 631 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 441663156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7746 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (17499300).

Almost surely, 2^441663156 is an apocalyptic number.

It is an amenable number.

441663156 is an abundant number, since it is smaller than the sum of its proper divisors (818286444).

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

441663156 is a wasteful number, since it uses less digits than its factorization.

441663156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38509 (or 38504 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 441663156 is about 21015.7834971718. The cubic root of 441663156 is about 761.5476058990.

The spelling of 441663156 in words is "four hundred forty-one million, six hundred sixty-three thousand, one hundred fifty-six".