15072738 has 32 divisors (see below), whose sum is σ = 32049600. Its totient is φ = 4712256.

The previous prime is 15072737. The next prime is 15072763. The reversal of 15072738 is 83727051.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15072699 and 15072708.

It is not an unprimeable number, because it can be changed into a prime (15072737) 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, 11820 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (1001550).

Almost surely, 2^15072738 is an apocalyptic number.

15072738 is an abundant number, since it is smaller than the sum of its proper divisors (16976862).

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

15072738 is a wasteful number, since it uses less digits than its factorization.

15072738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 15072738 is about 3882.3624251221. The cubic root of 15072738 is about 247.0192033238.

Adding to 15072738 its reverse (83727051), we get a palindrome (98799789).

The spelling of 15072738 in words is "fifteen million, seventy-two thousand, seven hundred thirty-eight".