1500240 has 160 divisors (see below), whose sum is σ = 5713920. Its totient is φ = 317952.

The previous prime is 1500229. The next prime is 1500241. The reversal of 1500240 is 420051.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1500241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31897 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (35712).

2^1500240 is an apocalyptic number.

1500240 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 1500240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856960).

1500240 is an abundant number, since it is smaller than the sum of its proper divisors (4213680).

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

1500240 is a wasteful number, since it uses less digits than its factorization.

1500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1500240 is about 1224.8428470624. The cubic root of 1500240 is about 114.4775290724.

Adding to 1500240 its reverse (420051), we get a palindrome (1920291).

It can be divided in two parts, 1500 and 240, that multiplied together give a square (360000 = 600²).

The spelling of 1500240 in words is "one million, five hundred thousand, two hundred forty".