1445603456 has 48 divisors (see below), whose sum is σ = 3165558270. Its totient is φ = 657085440.

The previous prime is 1445603441. The next prime is 1445603503. The reversal of 1445603456 is 6543065441.

It can be written as a sum of positive squares in only one way, i.e., 1282785856 + 162817600 = 35816^2 + 12760^2 .

It is a super-3 number, since 3×1445603456³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31181 + ... + 62156.

Almost surely, 2^1445603456 is an apocalyptic number.

1445603456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1445603456 is an abundant number, since it is smaller than the sum of its proper divisors (1719954814).

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

1445603456 is an equidigital number, since it uses as much as digits as its factorization.

1445603456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93373 (or 93350 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 1445603456 is about 38021.0922515385. The cubic root of 1445603456 is about 1130.7060760659.

Adding to 1445603456 its reverse (6543065441), we get a palindrome (7988668897).

The spelling of 1445603456 in words is "one billion, four hundred forty-five million, six hundred three thousand, four hundred fifty-six".