1530098440 has 64 divisors (see below), whose sum is σ = 3715891200. Its totient is φ = 563688192.

The previous prime is 1530098431. The next prime is 1530098473. The reversal of 1530098440 is 448900351.

It is a junction number, because it is equal to n+sod(n) for n = 1530098396 and 1530098405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246009 + ... + 252151.

It is an arithmetic number, because the mean of its divisors is an integer number (58060800).

Almost surely, 2^1530098440 is an apocalyptic number.

1530098440 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 1530098440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1857945600).

1530098440 is an abundant number, since it is smaller than the sum of its proper divisors (2185792760).

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

1530098440 is a wasteful number, since it uses less digits than its factorization.

1530098440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6646 (or 6642 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1530098440 is about 39116.4727448680. The cubic root of 1530098440 is about 1152.3200648252.

Adding to 1530098440 its reverse (448900351), we get a palindrome (1978998791).

The spelling of 1530098440 in words is "one billion, five hundred thirty million, ninety-eight thousand, four hundred forty".