1455447120 has 160 divisors (see below), whose sum is σ = 4851118080. Its totient is φ = 359815680.

The previous prime is 1455447089. The next prime is 1455447121. The reversal of 1455447120 is 217445541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455447121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210925 + ... + 217715.

It is an arithmetic number, because the mean of its divisors is an integer number (30319488).

Almost surely, 2^1455447120 is an apocalyptic number.

1455447120 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 1455447120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2425559040).

1455447120 is an abundant number, since it is smaller than the sum of its proper divisors (3395670960).

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

1455447120 is a wasteful number, since it uses less digits than its factorization.

1455447120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873 (or 6867 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 1455447120 is about 38150.3226722920. The cubic root of 1455447120 is about 1133.2667419543.

The spelling of 1455447120 in words is "one billion, four hundred fifty-five million, four hundred forty-seven thousand, one hundred twenty".