228956603242 has 4 divisors (see below), whose sum is σ = 343434904866. Its totient is φ = 114478301620.

The previous prime is 228956603221. The next prime is 228956603257. The reversal of 228956603242 is 242306659822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242306659822 = 2 ⋅121153329911.

It can be written as a sum of positive squares in only one way, i.e., 209005323241 + 19951280001 = 457171^2 + 141249^2 .

It is a super-2 number, since 2×228956603242² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57239150809 + ... + 57239150812.

Almost surely, 2^228956603242 is an apocalyptic number.

228956603242 is a deficient number, since it is larger than the sum of its proper divisors (114478301624).

228956603242 is a wasteful number, since it uses less digits than its factorization.

228956603242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114478301623.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 228956603242 in words is "two hundred twenty-eight billion, nine hundred fifty-six million, six hundred three thousand, two hundred forty-two".