228390825307 has 8 divisors (see below), whose sum is σ = 240670198800. Its totient is φ = 216137332224.

The previous prime is 228390825281. The next prime is 228390825317. The reversal of 228390825307 is 703528093822.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 228390825307 - 2¹¹ = 228390823259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228390825317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6451978 + ... + 6487279.

It is an arithmetic number, because the mean of its divisors is an integer number (30083774850).

Almost surely, 2^228390825307 is an apocalyptic number.

228390825307 is a deficient number, since it is larger than the sum of its proper divisors (12279373493).

228390825307 is a wasteful number, since it uses less digits than its factorization.

228390825307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12940205.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 228390825307 in words is "two hundred twenty-eight billion, three hundred ninety million, eight hundred twenty-five thousand, three hundred seven".