445647031000 has 128 divisors (see below), whose sum is σ = 1079326684800. Its totient is φ = 172023667200.

The previous prime is 445647030973. The next prime is 445647031051. The reversal of 445647031000 is 130746544.

It is a super-2 number, since 2×445647031000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102280822 + ... + 102285178.

It is an arithmetic number, because the mean of its divisors is an integer number (8432239725).

Almost surely, 2^445647031000 is an apocalyptic number.

445647031000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445647031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539663342400).

445647031000 is an abundant number, since it is smaller than the sum of its proper divisors (633679653800).

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

445647031000 is a wasteful number, since it uses less digits than its factorization.

445647031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934 (or 7920 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 445647031000 its reverse (130746544), we get a palindrome (445777777544).

The spelling of 445647031000 in words is "four hundred forty-five billion, six hundred forty-seven million, thirty-one thousand".