1503132440 has 16 divisors (see below), whose sum is σ = 3382048080. Its totient is φ = 601252960.

The previous prime is 1503132403. The next prime is 1503132473. The reversal of 1503132440 is 442313051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18789116 + ... + 18789195.

It is an arithmetic number, because the mean of its divisors is an integer number (211378005).

Almost surely, 2^1503132440 is an apocalyptic number.

1503132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1503132440 is an abundant number, since it is smaller than the sum of its proper divisors (1878915640).

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

1503132440 is a wasteful number, since it uses less digits than its factorization.

1503132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37578322 (or 37578318 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1503132440 is about 38770.2519981493. The cubic root of 1503132440 is about 1145.5105215627.

Adding to 1503132440 its reverse (442313051), we get a palindrome (1945445491).

The spelling of 1503132440 in words is "one billion, five hundred three million, one hundred thirty-two thousand, four hundred forty".