1530047772 has 192 divisors, whose sum is σ = 4536000000. Its totient is φ = 441745920.

The previous prime is 1530047741. The next prime is 1530047797. The reversal of 1530047772 is 2777400351.

1530047772 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3065979 + ... + 3066477.

It is an arithmetic number, because the mean of its divisors is an integer number (23625000).

Almost surely, 2^1530047772 is an apocalyptic number.

1530047772 is a gapful number since it is divisible by the number (12) 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 1530047772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268000000).

1530047772 is an abundant number, since it is smaller than the sum of its proper divisors (3005952228).

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

1530047772 is a wasteful number, since it uses less digits than its factorization.

1530047772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 1530047772 is about 39115.8250839734. The cubic root of 1530047772 is about 1152.3073452955.

The spelling of 1530047772 in words is "one billion, five hundred thirty million, forty-seven thousand, seven hundred seventy-two".