1445409828 has 36 divisors (see below), whose sum is σ = 3663249408. Its totient is φ = 480540720.

The previous prime is 1445409809. The next prime is 1445409829. The reversal of 1445409828 is 8289045441.

1445409828 is a `hidden beast` number, since 14 + 4 + 540 + 98 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1445409829) 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 11 ways as a sum of consecutive naturals, for example, 38628 + ... + 66203.

It is an arithmetic number, because the mean of its divisors is an integer number (101756928).

Almost surely, 2^1445409828 is an apocalyptic number.

1445409828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1445409828 is an abundant number, since it is smaller than the sum of its proper divisors (2217839580).

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

1445409828 is a wasteful number, since it uses less digits than its factorization.

1445409828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105224 (or 105219 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 1445409828 is about 38018.5458427857. The cubic root of 1445409828 is about 1130.6555905447.

The spelling of 1445409828 in words is "one billion, four hundred forty-five million, four hundred nine thousand, eight hundred twenty-eight".