445376280 has 64 divisors (see below), whose sum is σ = 1339027200. Its totient is φ = 118509440.

The previous prime is 445376263. The next prime is 445376291. The reversal of 445376280 is 82673544.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55141 + ... + 62699.

It is an arithmetic number, because the mean of its divisors is an integer number (20922300).

Almost surely, 2^445376280 is an apocalyptic number.

445376280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445376280 is an abundant number, since it is smaller than the sum of its proper divisors (893650920).

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

445376280 is a wasteful number, since it uses less digits than its factorization.

445376280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064 (or 8060 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 445376280 is about 21103.9399165180. The cubic root of 445376280 is about 763.6757987777.

The spelling of 445376280 in words is "four hundred forty-five million, three hundred seventy-six thousand, two hundred eighty".