445491130 has 16 divisors (see below), whose sum is σ = 916439040. Its totient is φ = 152739792.

The previous prime is 445491073. The next prime is 445491131. The reversal of 445491130 is 31194544.

It is a junction number, because it is equal to n+sod(n) for n = 445491092 and 445491101.

It is not an unprimeable number, because it can be changed into a prime (445491131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3182010 + ... + 3182149.

It is an arithmetic number, because the mean of its divisors is an integer number (57277440).

Almost surely, 2^445491130 is an apocalyptic number.

445491130 is an abundant number, since it is smaller than the sum of its proper divisors (470947910).

445491130 is a wasteful number, since it uses less digits than its factorization.

445491130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364173.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 445491130 is about 21106.6607970091. The cubic root of 445491130 is about 763.7414366300.

The spelling of 445491130 in words is "four hundred forty-five million, four hundred ninety-one thousand, one hundred thirty".