38375421 has 16 divisors (see below), whose sum is σ = 61555200. Its totient is φ = 20774448.

The previous prime is 38375417. The next prime is 38375423. The reversal of 38375421 is 12457383.

It is not a de Polignac number, because 38375421 - 2² = 38375417 is a prime.

It is a super-3 number, since 3×38375421³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38375423) 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, 47691 + ... + 48488.

It is an arithmetic number, because the mean of its divisors is an integer number (3847200).

Almost surely, 2^38375421 is an apocalyptic number.

It is an amenable number.

38375421 is a deficient number, since it is larger than the sum of its proper divisors (23179779).

38375421 is a wasteful number, since it uses less digits than its factorization.

38375421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96208.

The product of its digits is 20160, while the sum is 33.

The square root of 38375421 is about 6194.7898269433. The cubic root of 38375421 is about 337.3010690507.

The spelling of 38375421 in words is "thirty-eight million, three hundred seventy-five thousand, four hundred twenty-one".