15242018 has 16 divisors (see below), whose sum is σ = 25747200. Its totient is φ = 6704400.

The previous prime is 15241997. The next prime is 15242027. The reversal of 15242018 is 81024251.

It is a super-2 number, since 2×15242018² = 464638225424648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15241984 and 15242002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10493 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (1609200).

Almost surely, 2^15242018 is an apocalyptic number.

15242018 is a deficient number, since it is larger than the sum of its proper divisors (10505182).

15242018 is a wasteful number, since it uses less digits than its factorization.

15242018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22393.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 15242018 is about 3904.1027138127. The cubic root of 15242018 is about 247.9405099242.

Adding to 15242018 its reverse (81024251), we get a palindrome (96266269).

The spelling of 15242018 in words is "fifteen million, two hundred forty-two thousand, eighteen".