228351478 has 8 divisors (see below), whose sum is σ = 347351760. Its totient is φ = 112567560.

The previous prime is 228351467. The next prime is 228351491. The reversal of 228351478 is 874153822.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 228351478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803913 + ... + 804196.

It is an arithmetic number, because the mean of its divisors is an integer number (43418970).

Almost surely, 2^228351478 is an apocalyptic number.

228351478 is a deficient number, since it is larger than the sum of its proper divisors (119000282).

228351478 is a wasteful number, since it uses less digits than its factorization.

228351478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608182.

The product of its digits is 107520, while the sum is 40.

The square root of 228351478 is about 15111.3029881609. The cubic root of 228351478 is about 611.2252342262.

The spelling of 228351478 in words is "two hundred twenty-eight million, three hundred fifty-one thousand, four hundred seventy-eight".