1502130440 has 32 divisors (see below), whose sum is σ = 3471142680. Its totient is φ = 584612352.

The previous prime is 1502130439. The next prime is 1502130463. The reversal of 1502130440 is 440312051.

It can be written as a sum of positive squares in 4 ways, for example, as 1499703076 + 2427364 = 38726^2 + 1558^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505997 + ... + 508956.

Almost surely, 2^1502130440 is an apocalyptic number.

1502130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1502130440 is an abundant number, since it is smaller than the sum of its proper divisors (1969012240).

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

1502130440 is a wasteful number, since it uses less digits than its factorization.

1502130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015001 (or 1014997 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1502130440 is about 38757.3275652489. The cubic root of 1502130440 is about 1145.2559295185.

Adding to 1502130440 its reverse (440312051), we get a palindrome (1942442491).

The spelling of 1502130440 in words is "one billion, five hundred two million, one hundred thirty thousand, four hundred forty".