228005615 has 16 divisors (see below), whose sum is σ = 290055168. Its totient is φ = 171465216.

The previous prime is 228005599. The next prime is 228005653. The reversal of 228005615 is 516500822.

It is a cyclic number.

It is not a de Polignac number, because 228005615 - 2⁴ = 228005599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136274 + ... + 137936.

It is an arithmetic number, because the mean of its divisors is an integer number (18128448).

Almost surely, 2^228005615 is an apocalyptic number.

228005615 is a deficient number, since it is larger than the sum of its proper divisors (62049553).

228005615 is a wasteful number, since it uses less digits than its factorization.

228005615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 228005615 is about 15099.8548006264. The cubic root of 228005615 is about 610.9164893994.

The spelling of 228005615 in words is "two hundred twenty-eight million, five thousand, six hundred fifteen".