1530103440 has 160 divisors (see below), whose sum is σ = 5012536320. Its totient is φ = 385039872.

The previous prime is 1530103427. The next prime is 1530103453. The reversal of 1530103440 is 443010351.

It is an interprime number because it is at equal distance from previous prime (1530103427) and next prime (1530103453).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1581837 + ... + 1582803.

It is an arithmetic number, because the mean of its divisors is an integer number (31328352).

Almost surely, 2^1530103440 is an apocalyptic number.

1530103440 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 1530103440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2506268160).

1530103440 is an abundant number, since it is smaller than the sum of its proper divisors (3482432880).

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

1530103440 is a wasteful number, since it uses less digits than its factorization.

1530103440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1530103440 is about 39116.5366565088. The cubic root of 1530103440 is about 1152.3213199937.

Adding to 1530103440 its reverse (443010351), we get a palindrome (1973113791).

The spelling of 1530103440 in words is "one billion, five hundred thirty million, one hundred three thousand, four hundred forty".