1445202340 has 12 divisors (see below), whose sum is σ = 3034924956. Its totient is φ = 578080928.

The previous prime is 1445202337. The next prime is 1445202397. The reversal of 1445202340 is 432025441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 666569124 + 778633216 = 25818^2 + 27904^2 .

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 3 ways as a sum of consecutive naturals, for example, 36130039 + ... + 36130078.

It is an arithmetic number, because the mean of its divisors is an integer number (252910413).

Almost surely, 2^1445202340 is an apocalyptic number.

1445202340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445202340 is an abundant number, since it is smaller than the sum of its proper divisors (1589722616).

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

1445202340 is a wasteful number, since it uses less digits than its factorization.

1445202340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72260126 (or 72260124 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1445202340 is about 38015.8169713607. The cubic root of 1445202340 is about 1130.6014862372.

Adding to 1445202340 its reverse (432025441), we get a palindrome (1877227781).

The spelling of 1445202340 in words is "one billion, four hundred forty-five million, two hundred two thousand, three hundred forty".