1530390645 has 64 divisors (see below), whose sum is σ = 3114478080. Its totient is φ = 698457600.

The previous prime is 1530390637. The next prime is 1530390647. The reversal of 1530390645 is 5460930351.

1530390645 is a `hidden beast` number, since 1 + 5 + 3 + 0 + 3 + 9 + 0 + 645 = 666.

It is not a de Polignac number, because 1530390645 - 2³ = 1530390637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530390647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 888385 + ... + 890105.

It is an arithmetic number, because the mean of its divisors is an integer number (48663720).

Almost surely, 2^1530390645 is an apocalyptic number.

1530390645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530390645 is an abundant number, since it is smaller than the sum of its proper divisors (1584087435).

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

1530390645 is a wasteful number, since it uses less digits than its factorization.

1530390645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683 (or 2677 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 1530390645 is about 39120.2076298171. The cubic root of 1530390645 is about 1152.3934135379.

The spelling of 1530390645 in words is "one billion, five hundred thirty million, three hundred ninety thousand, six hundred forty-five".