1530831020 has 24 divisors (see below), whose sum is σ = 3215507568. Its totient is φ = 612187200.

The previous prime is 1530831019. The next prime is 1530831041. The reversal of 1530831020 is 201380351.

1530831020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1530831020² = 4686887223588480800, which contains 22 as substring.

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, 127475 + ... + 138965.

It is an arithmetic number, because the mean of its divisors is an integer number (133979482).

Almost surely, 2^1530831020 is an apocalyptic number.

1530831020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530831020 is an abundant number, since it is smaller than the sum of its proper divisors (1684676548).

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

1530831020 is a wasteful number, since it uses less digits than its factorization.

1530831020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18161 (or 18159 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1530831020 is about 39125.8357099245. The cubic root of 1530831020 is about 1152.5039379503.

The spelling of 1530831020 in words is "one billion, five hundred thirty million, eight hundred thirty-one thousand, twenty".