1445666452 has 24 divisors (see below), whose sum is σ = 2664295200. Its totient is φ = 684474336.

The previous prime is 1445666447. The next prime is 1445666461. The reversal of 1445666452 is 2546665441.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1445666399 and 1445666408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303078 + ... + 307810.

It is an arithmetic number, because the mean of its divisors is an integer number (111012300).

Almost surely, 2^1445666452 is an apocalyptic number.

It is an amenable number.

1445666452 is a deficient number, since it is larger than the sum of its proper divisors (1218628748).

1445666452 is a wasteful number, since it uses less digits than its factorization.

1445666452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775 (or 8773 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

The square root of 1445666452 is about 38021.9206774198. The cubic root of 1445666452 is about 1130.7225003315.

It can be divided in two parts, 14456 and 66452, that added together give a palindrome (80908).

The spelling of 1445666452 in words is "one billion, four hundred forty-five million, six hundred sixty-six thousand, four hundred fifty-two".