1534782720 has 144 divisors (see below), whose sum is σ = 5060224512. Its totient is φ = 396042240.

The previous prime is 1534782707. The next prime is 1534782721. The reversal of 1534782720 is 272874351.

1534782720 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1534782720² = 4711115995221196800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534782721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112594 + ... + 125486.

It is an arithmetic number, because the mean of its divisors is an integer number (35140448).

Almost surely, 2^1534782720 is an apocalyptic number.

1534782720 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 1534782720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2530112256).

1534782720 is an abundant number, since it is smaller than the sum of its proper divisors (3525441792).

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

1534782720 is a wasteful number, since it uses less digits than its factorization.

1534782720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948 (or 12934 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1534782720 is about 39176.3030415071. The cubic root of 1534782720 is about 1153.4947802845.

The spelling of 1534782720 in words is "one billion, five hundred thirty-four million, seven hundred eighty-two thousand, seven hundred twenty".