1500340240 has 80 divisors (see below), whose sum is σ = 3995851392. Its totient is φ = 513211392.

The previous prime is 1500340229. The next prime is 1500340243. The reversal of 1500340240 is 420430051.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1500340243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258652 + ... + 264388.

Almost surely, 2^1500340240 is an apocalyptic number.

1500340240 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 1500340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997925696).

1500340240 is an abundant number, since it is smaller than the sum of its proper divisors (2495511152).

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

1500340240 is a wasteful number, since it uses less digits than its factorization.

1500340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1500340240 is about 38734.2256925319. The cubic root of 1500340240 is about 1144.8007865821.

Adding to 1500340240 its reverse (420430051), we get a palindrome (1920770291).

The spelling of 1500340240 in words is "one billion, five hundred million, three hundred forty thousand, two hundred forty".