228023737 has 8 divisors (see below), whose sum is σ = 241569000. Its totient is φ = 214493184.

The previous prime is 228023729. The next prime is 228023753. The reversal of 228023737 is 737320822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19971961 + 208051776 = 4469^2 + 14424^2 .

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 228023737 - 2³ = 228023729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228023707) 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, 56689 + ... + 60577.

It is an arithmetic number, because the mean of its divisors is an integer number (30196125).

Almost surely, 2^228023737 is an apocalyptic number.

It is an amenable number.

228023737 is a deficient number, since it is larger than the sum of its proper divisors (13545263).

228023737 is a wasteful number, since it uses less digits than its factorization.

228023737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 228023737 is about 15100.4548606987. The cubic root of 228023737 is about 610.9326742864.

The spelling of 228023737 in words is "two hundred twenty-eight million, twenty-three thousand, seven hundred thirty-seven".