228436806 has 16 divisors (see below), whose sum is σ = 492017904. Its totient is φ = 70288224.

The previous prime is 228436801. The next prime is 228436811. The reversal of 228436806 is 608634822.

It is an interprime number because it is at equal distance from previous prime (228436801) and next prime (228436811).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228436801) 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, 1464261 + ... + 1464416.

It is an arithmetic number, because the mean of its divisors is an integer number (30751119).

Almost surely, 2^228436806 is an apocalyptic number.

228436806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

228436806 is an abundant number, since it is smaller than the sum of its proper divisors (263581098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228436806 is a wasteful number, since it uses less digits than its factorization.

228436806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928695.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 228436806 is about 15114.1260415546. The cubic root of 228436806 is about 611.3013568368.

The spelling of 228436806 in words is "two hundred twenty-eight million, four hundred thirty-six thousand, eight hundred six".