38725919 has 4 divisors (see below), whose sum is σ = 38744496. Its totient is φ = 38707344.

The previous prime is 38725873. The next prime is 38725931. The reversal of 38725919 is 91952783.

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-38725919 is a prime.

It is a super-2 number, since 2×38725919² = 2999393604789122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38725919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38725969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5699 + ... + 10484.

It is an arithmetic number, because the mean of its divisors is an integer number (9686124).

Almost surely, 2^38725919 is an apocalyptic number.

38725919 is a deficient number, since it is larger than the sum of its proper divisors (18577).

38725919 is a wasteful number, since it uses less digits than its factorization.

38725919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18576.

The product of its digits is 136080, while the sum is 44.

The square root of 38725919 is about 6223.0152659302. The cubic root of 38725919 is about 338.3248601069.

The spelling of 38725919 in words is "thirty-eight million, seven hundred twenty-five thousand, nine hundred nineteen".