1509530940 has 72 divisors (see below), whose sum is σ = 4778006688. Its totient is φ = 385038720.

The previous prime is 1509530927. The next prime is 1509530959. The reversal of 1509530940 is 490359051.

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

It is a junction number, because it is equal to n+sod(n) for n = 1509530895 and 1509530904.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 178171 + ... + 186450.

It is an arithmetic number, because the mean of its divisors is an integer number (66361204).

Almost surely, 2^1509530940 is an apocalyptic number.

1509530940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1509530940 is an abundant number, since it is smaller than the sum of its proper divisors (3268475748).

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

1509530940 is a wasteful number, since it uses less digits than its factorization.

1509530940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364659 (or 364654 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 1509530940 is about 38852.6825328702. The cubic root of 1509530940 is about 1147.1336150699.

Adding to 1509530940 its reverse (490359051), we get a palindrome (1999889991).

The spelling of 1509530940 in words is "one billion, five hundred nine million, five hundred thirty thousand, nine hundred forty".