1445644100 has 18 divisors (see below), whose sum is σ = 3137047914. Its totient is φ = 578257600.

The previous prime is 1445644099. The next prime is 1445644141. The reversal of 1445644100 is 14465441.

1445644100 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 136796416 + 1308847684 = 11696^2 + 36178^2 .

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, 7228121 + ... + 7228320.

Almost surely, 2^1445644100 is an apocalyptic number.

1445644100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445644100 is an abundant number, since it is smaller than the sum of its proper divisors (1691403814).

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

1445644100 is a wasteful number, since it uses less digits than its factorization.

1445644100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456455 (or 14456448 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 1445644100 is about 38021.6267405802. The cubic root of 1445644100 is about 1130.7166727910.

The spelling of 1445644100 in words is "one billion, four hundred forty-five million, six hundred forty-four thousand, one hundred".