38672639 has 8 divisors (see below), whose sum is σ = 39205488. Its totient is φ = 38142720.

The previous prime is 38672629. The next prime is 38672651. The reversal of 38672639 is 93627683.

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 38672639 - 2⁸ = 38672383 is a prime.

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 38672639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38672629) 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, 40364 + ... + 41310.

It is an arithmetic number, because the mean of its divisors is an integer number (4900686).

Almost surely, 2^38672639 is an apocalyptic number.

38672639 is a deficient number, since it is larger than the sum of its proper divisors (532849).

38672639 is an equidigital number, since it uses as much as digits as its factorization.

38672639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 326592, while the sum is 44.

The square root of 38672639 is about 6218.7329095243. The cubic root of 38672639 is about 338.1696305503.

The spelling of 38672639 in words is "thirty-eight million, six hundred seventy-two thousand, six hundred thirty-nine".