38417421 has 24 divisors (see below), whose sum is σ = 60722784. Its totient is φ = 21534240.

The previous prime is 38417413. The next prime is 38417443. The reversal of 38417421 is 12471483.

It is not a de Polignac number, because 38417421 - 2³ = 38417413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38417021) 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, 5326 + ... + 10256.

It is an arithmetic number, because the mean of its divisors is an integer number (2530116).

Almost surely, 2^38417421 is an apocalyptic number.

It is an amenable number.

38417421 is a deficient number, since it is larger than the sum of its proper divisors (22305363).

38417421 is a wasteful number, since it uses less digits than its factorization.

38417421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001 (or 4994 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 38417421 is about 6198.1788454352. The cubic root of 38417421 is about 337.4240772979.

The spelling of 38417421 in words is "thirty-eight million, four hundred seventeen thousand, four hundred twenty-one".