228470709 has 8 divisors (see below), whose sum is σ = 304732960. Its totient is φ = 152261136.

The previous prime is 228470677. The next prime is 228470719. The reversal of 228470709 is 907074822.

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

It is not a de Polignac number, because 228470709 - 2⁵ = 228470677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228470719) 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, 1594 + ... + 21435.

It is an arithmetic number, because the mean of its divisors is an integer number (38091620).

Almost surely, 2^228470709 is an apocalyptic number.

It is an amenable number.

228470709 is a deficient number, since it is larger than the sum of its proper divisors (76262251).

228470709 is a wasteful number, since it uses less digits than its factorization.

228470709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26339.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 228470709 is about 15115.2475666130. The cubic root of 228470709 is about 611.3315970377.

The spelling of 228470709 in words is "two hundred twenty-eight million, four hundred seventy thousand, seven hundred nine".