445149730 has 32 divisors (see below), whose sum is σ = 809015040. Its totient is φ = 176348160.

The previous prime is 445149673. The next prime is 445149767. The reversal of 445149730 is 37941544.

It is a self number, because there is not a number n which added to its sum of digits gives 445149730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771202 + ... + 771778.

It is an arithmetic number, because the mean of its divisors is an integer number (25281720).

Almost surely, 2^445149730 is an apocalyptic number.

445149730 is a deficient number, since it is larger than the sum of its proper divisors (363865310).

445149730 is a wasteful number, since it uses less digits than its factorization.

445149730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 445149730 is about 21098.5717526092. The cubic root of 445149730 is about 763.5462902375.

The spelling of 445149730 in words is "four hundred forty-five million, one hundred forty-nine thousand, seven hundred thirty".