38442471 has 4 divisors (see below), whose sum is σ = 51256632. Its totient is φ = 25628312.

The previous prime is 38442463. The next prime is 38442497. The reversal of 38442471 is 17424483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17424483 = 3 ⋅5808161.

It is a cyclic number.

It is not a de Polignac number, because 38442471 - 2³ = 38442463 is a prime.

It is a super-3 number, since 3×38442471³ (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 (38442431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6407076 + ... + 6407081.

It is an arithmetic number, because the mean of its divisors is an integer number (12814158).

Almost surely, 2^38442471 is an apocalyptic number.

38442471 is a deficient number, since it is larger than the sum of its proper divisors (12814161).

38442471 is a wasteful number, since it uses less digits than its factorization.

38442471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12814160.

The product of its digits is 21504, while the sum is 33.

The square root of 38442471 is about 6200.1992709912. The cubic root of 38442471 is about 337.4974002543.

The spelling of 38442471 in words is "thirty-eight million, four hundred forty-two thousand, four hundred seventy-one".