1532380720 has 40 divisors (see below), whose sum is σ = 3836848176. Its totient is φ = 565801728.

The previous prime is 1532380693. The next prime is 1532380739. The reversal of 1532380720 is 270832351.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×1532380720⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735682 + ... + 737761.

Almost surely, 2^1532380720 is an apocalyptic number.

1532380720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1532380720 is an abundant number, since it is smaller than the sum of its proper divisors (2304467456).

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

1532380720 is a wasteful number, since it uses less digits than its factorization.

1532380720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473469 (or 1473463 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1532380720 is about 39145.6347502503. The cubic root of 1532380720 is about 1152.8927100148.

The spelling of 1532380720 in words is "one billion, five hundred thirty-two million, three hundred eighty thousand, seven hundred twenty".