1445246464 has 80 divisors (see below), whose sum is σ = 2969809920. Its totient is φ = 702392320.

The previous prime is 1445246389. The next prime is 1445246497. The reversal of 1445246464 is 4646425441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3016977 + ... + 3017455.

It is an arithmetic number, because the mean of its divisors is an integer number (37122624).

Almost surely, 2^1445246464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445246464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484904960).

1445246464 is an abundant number, since it is smaller than the sum of its proper divisors (1524563456).

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

1445246464 is an frugal number, since it uses more digits than its factorization.

1445246464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 635 counting only the distinct ones).

The product of its digits is 368640, while the sum is 40.

The square root of 1445246464 is about 38016.3973043212. The cubic root of 1445246464 is about 1130.6129923890.

The spelling of 1445246464 in words is "one billion, four hundred forty-five million, two hundred forty-six thousand, four hundred sixty-four".