38512769 has 8 divisors (see below), whose sum is σ = 40965120. Its totient is φ = 36081216.

The previous prime is 38512763. The next prime is 38512801. The reversal of 38512769 is 96721583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38512769 is a prime.

It is a super-2 number, since 2×38512769² = 2966466752094722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38512763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 8870.

It is an arithmetic number, because the mean of its divisors is an integer number (5120640).

Almost surely, 2^38512769 is an apocalyptic number.

It is an amenable number.

38512769 is a deficient number, since it is larger than the sum of its proper divisors (2452351).

38512769 is a wasteful number, since it uses less digits than its factorization.

38512769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10399.

The product of its digits is 90720, while the sum is 41.

The square root of 38512769 is about 6205.8656930359. The cubic root of 38512769 is about 337.7029970370.

The spelling of 38512769 in words is "thirty-eight million, five hundred twelve thousand, seven hundred sixty-nine".