228402046 has 8 divisors (see below), whose sum is σ = 349892640. Its totient is φ = 111771168.

The previous prime is 228401977. The next prime is 228402061. The reversal of 228402046 is 640204822.

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

It is a super-2 number, since 2×228402046² = 104334989233972232, which contains 22 as substring.

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, 1214811 + ... + 1214998.

It is an arithmetic number, because the mean of its divisors is an integer number (43736580).

Almost surely, 2^228402046 is an apocalyptic number.

228402046 is a deficient number, since it is larger than the sum of its proper divisors (121490594).

228402046 is a wasteful number, since it uses less digits than its factorization.

228402046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429858.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 228402046 is about 15112.9760801769. The cubic root of 228402046 is about 611.2703491176.

Adding to 228402046 its reverse (640204822), we get a palindrome (868606868).

The spelling of 228402046 in words is "two hundred twenty-eight million, four hundred two thousand, forty-six".