15272238 has 16 divisors (see below), whose sum is σ = 32152320. Its totient is φ = 4822776.

The previous prime is 15272233. The next prime is 15272251. The reversal of 15272238 is 83227251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15272233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66870 + ... + 67097.

It is an arithmetic number, because the mean of its divisors is an integer number (2009520).

Almost surely, 2^15272238 is an apocalyptic number.

15272238 is an abundant number, since it is smaller than the sum of its proper divisors (16880082).

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

15272238 is a wasteful number, since it uses less digits than its factorization.

15272238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133991.

The product of its digits is 6720, while the sum is 30.

The square root of 15272238 is about 3907.9710848470. The cubic root of 15272238 is about 248.1042637384.

Adding to 15272238 its reverse (83227251), we get a palindrome (98499489).

It can be divided in two parts, 152 and 72238, that added together give a triangular number (72390 = T₃₈₀).

The spelling of 15272238 in words is "fifteen million, two hundred seventy-two thousand, two hundred thirty-eight".