1445421330 has 48 divisors (see below), whose sum is σ = 3775000320. Its totient is φ = 383711904.

The previous prime is 1445421319. The next prime is 1445421343. The reversal of 1445421330 is 331245441.

It is a happy number.

1445421330 is a `hidden beast` number, since 1 + 445 + 4 + 213 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1445421294 and 1445421303.

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 23 ways as a sum of consecutive naturals, for example, 15940 + ... + 56079.

It is an arithmetic number, because the mean of its divisors is an integer number (78645840).

Almost surely, 2^1445421330 is an apocalyptic number.

1445421330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1445421330 is an abundant number, since it is smaller than the sum of its proper divisors (2329578990).

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

1445421330 is a wasteful number, since it uses less digits than its factorization.

1445421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72255 (or 72252 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1445421330 is about 38018.6971107638. The cubic root of 1445421330 is about 1130.6585896402.

Adding to 1445421330 its reverse (331245441), we get a palindrome (1776666771).

The spelling of 1445421330 in words is "one billion, four hundred forty-five million, four hundred twenty-one thousand, three hundred thirty".