1445329452420 has 192 divisors, whose sum is σ = 5409420441600. Its totient is φ = 312973580160.

The previous prime is 1445329452373. The next prime is 1445329452433. The reversal of 1445329452420 is 242549235441.

1445329452420 is a `hidden beast` number, since 1 + 4 + 4 + 5 + 32 + 94 + 524 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9990346 + ... + 10133985.

It is an arithmetic number, because the mean of its divisors is an integer number (28174064800).

Almost surely, 2^{1445329452420} is an apocalyptic number.

1445329452420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445329452420 is an abundant number, since it is smaller than the sum of its proper divisors (3964090989180).

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

1445329452420 is a wasteful number, since it uses less digits than its factorization.

1445329452420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20124375 (or 20124367 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 1445329452420 in words is "one trillion, four hundred forty-five billion, three hundred twenty-nine million, four hundred fifty-two thousand, four hundred twenty".