1502440540 has 24 divisors (see below), whose sum is σ = 3222257472. Its totient is φ = 588189120.

The previous prime is 1502440529. The next prime is 1502440547. The reversal of 1502440540 is 450442051.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1502440547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798231 + ... + 800110.

It is an arithmetic number, because the mean of its divisors is an integer number (134260728).

Almost surely, 2^1502440540 is an apocalyptic number.

1502440540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1502440540 is an abundant number, since it is smaller than the sum of its proper divisors (1719816932).

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

1502440540 is a wasteful number, since it uses less digits than its factorization.

1502440540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598397 (or 1598395 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1502440540 is about 38761.3278926303. The cubic root of 1502440540 is about 1145.3347330228.

Adding to 1502440540 its reverse (450442051), we get a palindrome (1952882591).

The spelling of 1502440540 in words is "one billion, five hundred two million, four hundred forty thousand, five hundred forty".