38040971 has 4 divisors (see below), whose sum is σ = 38053344. Its totient is φ = 38028600.

The previous prime is 38040931. The next prime is 38040973. The reversal of 38040971 is 17904083.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 17904083 = 163 ⋅109841.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38040971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38040973) 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, 2381 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (9513336).

Almost surely, 2^38040971 is an apocalyptic number.

38040971 is a deficient number, since it is larger than the sum of its proper divisors (12373).

38040971 is an equidigital number, since it uses as much as digits as its factorization.

38040971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 38040971 is about 6167.7362946222. The cubic root of 38040971 is about 336.3183249077.

Adding to 38040971 its sum of digits (32), we get a triangular number (38041003 = T₈₇₂₂).

The spelling of 38040971 in words is "thirty-eight million, forty thousand, nine hundred seventy-one".