38129261 has 8 divisors (see below), whose sum is σ = 39399360. Its totient is φ = 36876672.

The previous prime is 38129237. The next prime is 38129263. The reversal of 38129261 is 16292183.

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

It is a cyclic number.

It is not a de Polignac number, because 38129261 - 2⁶ = 38129197 is a prime.

It is a super-2 number, since 2×38129261² = 2907681088812242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38129263) 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, 125 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (4924920).

Almost surely, 2^38129261 is an apocalyptic number.

It is an amenable number.

38129261 is a deficient number, since it is larger than the sum of its proper divisors (1270099).

38129261 is a wasteful number, since it uses less digits than its factorization.

38129261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755.

The product of its digits is 5184, while the sum is 32.

The square root of 38129261 is about 6174.8895536681. The cubic root of 38129261 is about 336.5783130346.

The spelling of 38129261 in words is "thirty-eight million, one hundred twenty-nine thousand, two hundred sixty-one".