1445434100 has 72 divisors (see below), whose sum is σ = 3445092000. Its totient is φ = 522025600.

The previous prime is 1445434069. The next prime is 1445434147. The reversal of 1445434100 is 14345441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445434100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159491 + ... + 168309.

It is an arithmetic number, because the mean of its divisors is an integer number (47848500).

Almost surely, 2^1445434100 is an apocalyptic number.

1445434100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445434100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1722546000).

1445434100 is an abundant number, since it is smaller than the sum of its proper divisors (1999657900).

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

1445434100 is a wasteful number, since it uses less digits than its factorization.

1445434100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993 (or 8986 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1445434100 is about 38018.8650540755. The cubic root of 1445434100 is about 1130.6619193424.

Adding to 1445434100 its reverse (14345441), we get a palindrome (1459779541).

The spelling of 1445434100 in words is "one billion, four hundred forty-five million, four hundred thirty-four thousand, one hundred".