38971569 has 48 divisors (see below), whose sum is σ = 65587200. Its totient is φ = 20150208.

The previous prime is 38971567. The next prime is 38971573. The reversal of 38971569 is 96517983.

It is not a de Polignac number, because 38971569 - 2¹ = 38971567 is a prime.

It is a super-2 number, since 2×38971569² = 3037566380643522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38971567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280302 + ... + 280440.

It is an arithmetic number, because the mean of its divisors is an integer number (1366400).

Almost surely, 2^38971569 is an apocalyptic number.

38971569 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38971569 is a deficient number, since it is larger than the sum of its proper divisors (26615631).

38971569 is a wasteful number, since it uses less digits than its factorization.

38971569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 241 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 38971569 is about 6242.7212816207. The cubic root of 38971569 is about 339.0387178305.

The spelling of 38971569 in words is "thirty-eight million, nine hundred seventy-one thousand, five hundred sixty-nine".