228900090623 has 4 divisors (see below), whose sum is σ = 229523796960. Its totient is φ = 228276384288.

The previous prime is 228900090613. The next prime is 228900090637. The reversal of 228900090623 is 326090009822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228900090623 - 2¹⁴ = 228900074239 is a prime.

It is a super-2 number, since 2×228900090623² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228900090613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311852618 + ... + 311853351.

It is an arithmetic number, because the mean of its divisors is an integer number (57380949240).

Almost surely, 2^228900090623 is an apocalyptic number.

228900090623 is a deficient number, since it is larger than the sum of its proper divisors (623706337).

228900090623 is an equidigital number, since it uses as much as digits as its factorization.

228900090623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623706336.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 228900090623 in words is "two hundred twenty-eight billion, nine hundred million, ninety thousand, six hundred twenty-three".