15004013240 has 32 divisors (see below), whose sum is σ = 33887414880. Its totient is φ = 5978781312.

The previous prime is 15004013239. The next prime is 15004013249. The reversal of 15004013240 is 4231040051.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15004013249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702599 + ... + 723638.

It is an arithmetic number, because the mean of its divisors is an integer number (1058981715).

Almost surely, 2^15004013240 is an apocalyptic number.

15004013240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15004013240 is an abundant number, since it is smaller than the sum of its proper divisors (18883401640).

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

15004013240 is a wasteful number, since it uses less digits than its factorization.

15004013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426511 (or 1426507 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15004013240 its reverse (4231040051), we get a palindrome (19235053291).

The spelling of 15004013240 in words is "fifteen billion, four million, thirteen thousand, two hundred forty".