1449275520 has 256 divisors, whose sum is σ = 5760046080. Its totient is φ = 301117440.

The previous prime is 1449275519. The next prime is 1449275537. The reversal of 1449275520 is 255729441.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142939 + ... + 152741.

It is an arithmetic number, because the mean of its divisors is an integer number (22500180).

Almost surely, 2^1449275520 is an apocalyptic number.

1449275520 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 1449275520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880023040).

1449275520 is an abundant number, since it is smaller than the sum of its proper divisors (4310770560).

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

1449275520 is a wasteful number, since it uses less digits than its factorization.

1449275520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843 (or 9831 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1449275520 is about 38069.3514523166. The cubic root of 1449275520 is about 1131.6626579948.

The spelling of 1449275520 in words is "one billion, four hundred forty-nine million, two hundred seventy-five thousand, five hundred twenty".