228736479 has 32 divisors (see below), whose sum is σ = 339482880. Its totient is φ = 136346112.

The previous prime is 228736477. The next prime is 228736481. The reversal of 228736479 is 974637822.

It is an interprime number because it is at equal distance from previous prime (228736477) and next prime (228736481).

It is not a de Polignac number, because 228736479 - 2¹ = 228736477 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228736477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79732 + ... + 82550.

It is an arithmetic number, because the mean of its divisors is an integer number (10608840).

Almost surely, 2^228736479 is an apocalyptic number.

228736479 is a deficient number, since it is larger than the sum of its proper divisors (110746401).

228736479 is a wasteful number, since it uses less digits than its factorization.

228736479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919.

The product of its digits is 1016064, while the sum is 48.

The square root of 228736479 is about 15124.0364651769. The cubic root of 228736479 is about 611.5685503003.

The spelling of 228736479 in words is "two hundred twenty-eight million, seven hundred thirty-six thousand, four hundred seventy-nine".