1445013740 has 48 divisors (see below), whose sum is σ = 3146532480. Its totient is φ = 556765440.

The previous prime is 1445013737. The next prime is 1445013761. The reversal of 1445013740 is 473105441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265850 + ... + 271230.

It is an arithmetic number, because the mean of its divisors is an integer number (65552760).

Almost surely, 2^1445013740 is an apocalyptic number.

1445013740 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 1445013740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573266240).

1445013740 is an abundant number, since it is smaller than the sum of its proper divisors (1701518740).

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

1445013740 is a wasteful number, since it uses less digits than its factorization.

1445013740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882 (or 5880 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1445013740 is about 38013.3363439728. The cubic root of 1445013740 is about 1130.5523026476.

The spelling of 1445013740 in words is "one billion, four hundred forty-five million, thirteen thousand, seven hundred forty".