228640735154 has 32 divisors (see below), whose sum is σ = 372746949120. Its totient is φ = 104557464000.

The previous prime is 228640735129. The next prime is 228640735181. The reversal of 228640735154 is 451537046822.

It is a junction number, because it is equal to n+sod(n) for n = 228640735099 and 228640735108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452359 + ... + 1602069.

It is an arithmetic number, because the mean of its divisors is an integer number (11648342160).

Almost surely, 2^228640735154 is an apocalyptic number.

228640735154 is a deficient number, since it is larger than the sum of its proper divisors (144106213966).

228640735154 is a wasteful number, since it uses less digits than its factorization.

228640735154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150266.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 228640735154 in words is "two hundred twenty-eight billion, six hundred forty million, seven hundred thirty-five thousand, one hundred fifty-four".