15002240 has 64 divisors (see below), whose sum is σ = 39143520. Its totient is φ = 5452800.

The previous prime is 15002231. The next prime is 15002249. The reversal of 15002240 is 4220051.

It is an interprime number because it is at equal distance from previous prime (15002231) and next prime (15002249).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (15002249) 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, 5975 + ... + 8105.

Almost surely, 2^15002240 is an apocalyptic number.

15002240 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 15002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19571760).

15002240 is an abundant number, since it is smaller than the sum of its proper divisors (24141280).

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

15002240 is a wasteful number, since it uses less digits than its factorization.

15002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 15002240 is about 3873.2725181686. The cubic root of 15002240 is about 246.6334830777.

Adding to 15002240 its reverse (4220051), we get a palindrome (19222291).

The spelling of 15002240 in words is "fifteen million, two thousand, two hundred forty".