228207616 has 176 divisors, whose sum is σ = 586915840. Its totient is φ = 86261760.

The previous prime is 228207611. The next prime is 228207653. The reversal of 228207616 is 616702822.

It is not an unprimeable number, because it can be changed into a prime (228207611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888665 + ... + 2888743.

Almost surely, 2^228207616 is an apocalyptic number.

228207616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228207616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293457920).

228207616 is an abundant number, since it is smaller than the sum of its proper divisors (358708224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228207616 is a wasteful number, since it uses less digits than its factorization.

228207616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 228207616 is about 15106.5421589456. The cubic root of 228207616 is about 611.0968494547.

The spelling of 228207616 in words is "two hundred twenty-eight million, two hundred seven thousand, six hundred sixteen".