38409157 has 8 divisors (see below), whose sum is σ = 39232736. Its totient is φ = 37593072.

The previous prime is 38409143. The next prime is 38409193. The reversal of 38409157 is 75190483.

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 38409157 - 2⁷ = 38409029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38409197) 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 7 ways as a sum of consecutive naturals, for example, 9163 + ... + 12679.

It is an arithmetic number, because the mean of its divisors is an integer number (4904092).

Almost surely, 2^38409157 is an apocalyptic number.

It is an amenable number.

38409157 is a deficient number, since it is larger than the sum of its proper divisors (823579).

38409157 is a wasteful number, since it uses less digits than its factorization.

38409157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 38409157 is about 6197.5121621502. The cubic root of 38409157 is about 337.3998810481.

The spelling of 38409157 in words is "thirty-eight million, four hundred nine thousand, one hundred fifty-seven".