38970431 has 4 divisors (see below), whose sum is σ = 38985864. Its totient is φ = 38955000.

The previous prime is 38970419. The next prime is 38970467. The reversal of 38970431 is 13407983.

38970431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38970431 is a prime.

It is a super-2 number, since 2×38970431² = 3037388984651522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38970391 and 38970400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38970401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2945 + ... + 9306.

It is an arithmetic number, because the mean of its divisors is an integer number (9746466).

Almost surely, 2^38970431 is an apocalyptic number.

38970431 is a deficient number, since it is larger than the sum of its proper divisors (15433).

38970431 is a wasteful number, since it uses less digits than its factorization.

38970431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 38970431 is about 6242.6301348070. The cubic root of 38970431 is about 339.0354177340.

The spelling of 38970431 in words is "thirty-eight million, nine hundred seventy thousand, four hundred thirty-one".