228717542 has 4 divisors (see below), whose sum is σ = 343076316. Its totient is φ = 114358770.

The previous prime is 228717521. The next prime is 228717583. The reversal of 228717542 is 245717822.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 228717496 and 228717505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57179384 + ... + 57179387.

It is an arithmetic number, because the mean of its divisors is an integer number (85769079).

Almost surely, 2^228717542 is an apocalyptic number.

228717542 is a deficient number, since it is larger than the sum of its proper divisors (114358774).

228717542 is a wasteful number, since it uses less digits than its factorization.

228717542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114358773.

The product of its digits is 62720, while the sum is 38.

The square root of 228717542 is about 15123.4103958069. The cubic root of 228717542 is about 611.5516726641.

The spelling of 228717542 in words is "two hundred twenty-eight million, seven hundred seventeen thousand, five hundred forty-two".