228023739 has 6 divisors (see below), whose sum is σ = 329367636. Its totient is φ = 152015820.

The previous prime is 228023729. The next prime is 228023753. The reversal of 228023739 is 937320822.

228023739 is a `hidden beast` number, since 2 + 280 + 2 + 373 + 9 = 666.

It is not a de Polignac number, because 228023739 - 2⁵ = 228023707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228023729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12667977 + ... + 12667994.

It is an arithmetic number, because the mean of its divisors is an integer number (54894606).

Almost surely, 2^228023739 is an apocalyptic number.

228023739 is a deficient number, since it is larger than the sum of its proper divisors (101343897).

228023739 is a wasteful number, since it uses less digits than its factorization.

228023739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25335977 (or 25335974 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 228023739 is about 15100.4549269219. The cubic root of 228023739 is about 610.9326760725.

The spelling of 228023739 in words is "two hundred twenty-eight million, twenty-three thousand, seven hundred thirty-nine".