445532130 has 64 divisors (see below), whose sum is σ = 1192665600. Its totient is φ = 118350720.

The previous prime is 445532123. The next prime is 445532173. The reversal of 445532130 is 31235544.

445532130 is a `hidden beast` number, since 445 + 5 + 3 + 213 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 445532094 and 445532103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70126 + ... + 76214.

It is an arithmetic number, because the mean of its divisors is an integer number (18635400).

Almost surely, 2^445532130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445532130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596332800).

445532130 is an abundant number, since it is smaller than the sum of its proper divisors (747133470).

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

445532130 is a wasteful number, since it uses less digits than its factorization.

445532130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376 (or 6370 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 445532130 is about 21107.6320320400. The cubic root of 445532130 is about 763.7648657821.

Adding to 445532130 its reverse (31235544), we get a palindrome (476767674).

It can be divided in two parts, 4455 and 32130, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 445532130 in words is "four hundred forty-five million, five hundred thirty-two thousand, one hundred thirty".