1445721350 has 96 divisors (see below), whose sum is σ = 2934294336. Its totient is φ = 528422400.

The previous prime is 1445721317. The next prime is 1445721367. The reversal of 1445721350 is 531275441.

It is a super-2 number, since 2×1445721350² = 4180220443691645000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2595272 + ... + 2595828.

It is an arithmetic number, because the mean of its divisors is an integer number (30565566).

Almost surely, 2^1445721350 is an apocalyptic number.

1445721350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1445721350 is an abundant number, since it is smaller than the sum of its proper divisors (1488572986).

1445721350 is a wasteful number, since it uses less digits than its factorization.

1445721350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1445721350 is about 38022.6425962215. The cubic root of 1445721350 is about 1130.7368129041.

Adding to 1445721350 its reverse (531275441), we get a palindrome (1976996791).

The spelling of 1445721350 in words is "one billion, four hundred forty-five million, seven hundred twenty-one thousand, three hundred fifty".