228155404 has 6 divisors (see below), whose sum is σ = 399271964. Its totient is φ = 114077700.

The previous prime is 228155399. The next prime is 228155461. The reversal of 228155404 is 404551822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28519422 + ... + 28519429.

Almost surely, 2^228155404 is an apocalyptic number.

It is an amenable number.

228155404 is a deficient number, since it is larger than the sum of its proper divisors (171116560).

228155404 is a wasteful number, since it uses less digits than its factorization.

228155404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57038855 (or 57038853 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 228155404 is about 15104.8139346369. The cubic root of 228155404 is about 611.0502412785.

The spelling of 228155404 in words is "two hundred twenty-eight million, one hundred fifty-five thousand, four hundred four".