38428173 has 24 divisors (see below), whose sum is σ = 63725376. Its totient is φ = 21859200.

The previous prime is 38428171. The next prime is 38428183. The reversal of 38428173 is 37182483.

It is not a de Polignac number, because 38428173 - 2¹ = 38428171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38428171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13918 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (2655224).

Almost surely, 2^38428173 is an apocalyptic number.

It is an amenable number.

38428173 is a deficient number, since it is larger than the sum of its proper divisors (25297203).

38428173 is a wasteful number, since it uses less digits than its factorization.

38428173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785 (or 2782 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38428173 is about 6199.0461363019. The cubic root of 38428173 is about 337.4555529946.

The spelling of 38428173 in words is "thirty-eight million, four hundred twenty-eight thousand, one hundred seventy-three".