38454228 has 36 divisors (see below), whose sum is σ = 99578388. Its totient is φ = 12504960.

The previous prime is 38454223. The next prime is 38454257. The reversal of 38454228 is 82245483.

38454228 is a `hidden beast` number, since 384 + 54 + 228 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15586704 + 22867524 = 3948^2 + 4782^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 38454192 and 38454201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38454223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11551 + ... + 14502.

Almost surely, 2^38454228 is an apocalyptic number.

It is an amenable number.

38454228 is an abundant number, since it is smaller than the sum of its proper divisors (61124160).

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

38454228 is a wasteful number, since it uses less digits than its factorization.

38454228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26104 (or 26099 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 38454228 is about 6201.1473131994. The cubic root of 38454228 is about 337.5318027644.

The spelling of 38454228 in words is "thirty-eight million, four hundred fifty-four thousand, two hundred twenty-eight".