1450721560 has 16 divisors (see below), whose sum is σ = 3264123600. Its totient is φ = 580288608.

The previous prime is 1450721557. The next prime is 1450721561. The reversal of 1450721560 is 651270541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450721561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18133980 + ... + 18134059.

It is an arithmetic number, because the mean of its divisors is an integer number (204007725).

Almost surely, 2^1450721560 is an apocalyptic number.

1450721560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1450721560 is an abundant number, since it is smaller than the sum of its proper divisors (1813402040).

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

1450721560 is a wasteful number, since it uses less digits than its factorization.

1450721560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36268050 (or 36268046 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 1450721560 is about 38088.3388978832. The cubic root of 1450721560 is about 1132.0389116218.

The spelling of 1450721560 in words is "one billion, four hundred fifty million, seven hundred twenty-one thousand, five hundred sixty".