445400930 has 16 divisors (see below), whose sum is σ = 863392824. Its totient is φ = 164455680.

The previous prime is 445400929. The next prime is 445400933. The reversal of 445400930 is 39004544.

It can be written as a sum of positive squares in 4 ways, for example, as 212197489 + 233203441 = 14567^2 + 15271^2 .

It is a junction number, because it is equal to n+sod(n) for n = 445400893 and 445400902.

It is not an unprimeable number, because it can be changed into a prime (445400933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712951 + ... + 1713210.

Almost surely, 2^445400930 is an apocalyptic number.

445400930 is a deficient number, since it is larger than the sum of its proper divisors (417991894).

445400930 is a wasteful number, since it uses less digits than its factorization.

445400930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426181.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 445400930 is about 21104.5239226096. The cubic root of 445400930 is about 763.6898874349.

The spelling of 445400930 in words is "four hundred forty-five million, four hundred thousand, nine hundred thirty".