228101445 has 48 divisors (see below), whose sum is σ = 464510592. Its totient is φ = 102084480.

The previous prime is 228101413. The next prime is 228101473. The reversal of 228101445 is 544101822.

It is not a de Polignac number, because 228101445 - 2⁵ = 228101413 is a prime.

It is a super-2 number, since 2×228101445² = 104060538422176050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11289 + ... + 24158.

It is an arithmetic number, because the mean of its divisors is an integer number (9677304).

Almost surely, 2^228101445 is an apocalyptic number.

It is an amenable number.

228101445 is an abundant number, since it is smaller than the sum of its proper divisors (236409147).

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

228101445 is a wasteful number, since it uses less digits than its factorization.

228101445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35482 (or 35479 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 228101445 is about 15103.0276765952. The cubic root of 228101445 is about 611.0020661327.

The spelling of 228101445 in words is "two hundred twenty-eight million, one hundred one thousand, four hundred forty-five".