38145830 has 8 divisors (see below), whose sum is σ = 68662512. Its totient is φ = 15258328.

The previous prime is 38145829. The next prime is 38145839. The reversal of 38145830 is 3854183.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38145839) 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 3 ways as a sum of consecutive naturals, for example, 1907282 + ... + 1907301.

It is an arithmetic number, because the mean of its divisors is an integer number (8582814).

Almost surely, 2^38145830 is an apocalyptic number.

38145830 is a deficient number, since it is larger than the sum of its proper divisors (30516682).

38145830 is a wasteful number, since it uses less digits than its factorization.

38145830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814590.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38145830 is about 6176.2310513775. The cubic root of 38145830 is about 336.6270591360.

The spelling of 38145830 in words is "thirty-eight million, one hundred forty-five thousand, eight hundred thirty".