228499401 has 16 divisors (see below), whose sum is σ = 331793280. Its totient is φ = 139032960.

The previous prime is 228499399. The next prime is 228499409. The reversal of 228499401 is 104994822.

It is not a de Polignac number, because 228499401 - 2¹ = 228499399 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 228499401.

It is not an unprimeable number, because it can be changed into a prime (228499409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29445 + ... + 36386.

It is an arithmetic number, because the mean of its divisors is an integer number (20737080).

Almost surely, 2^228499401 is an apocalyptic number.

It is an amenable number.

228499401 is a deficient number, since it is larger than the sum of its proper divisors (103293879).

228499401 is a wasteful number, since it uses less digits than its factorization.

228499401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65936.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 228499401 is about 15116.1966446590. The cubic root of 228499401 is about 611.3571868854.

The spelling of 228499401 in words is "two hundred twenty-eight million, four hundred ninety-nine thousand, four hundred one".