445278480 has 40 divisors (see below), whose sum is σ = 1380364032. Its totient is φ = 118740864.

The previous prime is 445278443. The next prime is 445278503. The reversal of 445278480 is 84872544.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×445278480² = 396545849502220800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 927424 + ... + 927903.

Almost surely, 2^445278480 is an apocalyptic number.

445278480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445278480 is an abundant number, since it is smaller than the sum of its proper divisors (935085552).

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

445278480 is a wasteful number, since it uses less digits than its factorization.

445278480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855343 (or 1855337 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 445278480 is about 21101.6226864192. The cubic root of 445278480 is about 763.6198962641.

The spelling of 445278480 in words is "four hundred forty-five million, two hundred seventy-eight thousand, four hundred eighty".