38428475 has 24 divisors (see below), whose sum is σ = 49080192. Its totient is φ = 29836800.

The previous prime is 38428421. The next prime is 38428477. The reversal of 38428475 is 57482483.

It is a de Polignac number, because none of the positive numbers 2^k-38428475 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38428477) 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, 172214 + ... + 172436.

It is an arithmetic number, because the mean of its divisors is an integer number (2045008).

Almost surely, 2^38428475 is an apocalyptic number.

38428475 is a deficient number, since it is larger than the sum of its proper divisors (10651717).

38428475 is a wasteful number, since it uses less digits than its factorization.

38428475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 402 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 38428475 is about 6199.0704948403. The cubic root of 38428475 is about 337.4564369928.

The spelling of 38428475 in words is "thirty-eight million, four hundred twenty-eight thousand, four hundred seventy-five".