228438502 has 8 divisors (see below), whose sum is σ = 343110312. Its totient is φ = 114068400.

The previous prime is 228438491. The next prime is 228438527. The reversal of 228438502 is 205834822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 73524 + ... + 76567.

It is an arithmetic number, because the mean of its divisors is an integer number (42888789).

Almost surely, 2^228438502 is an apocalyptic number.

228438502 is a deficient number, since it is larger than the sum of its proper divisors (114671810).

228438502 is a wasteful number, since it uses less digits than its factorization.

228438502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150854.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 228438502 is about 15114.1821479033. The cubic root of 228438502 is about 611.3028696761.

The spelling of 228438502 in words is "two hundred twenty-eight million, four hundred thirty-eight thousand, five hundred two".