38021407 has 8 divisors (see below), whose sum is σ = 40602240. Its totient is φ = 35525280.

The previous prime is 38021383. The next prime is 38021437. The reversal of 38021407 is 70412083.

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 38021407 - 2⁷ = 38021279 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 (38021437) 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, 20248 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (5075280).

Almost surely, 2^38021407 is an apocalyptic number.

38021407 is a deficient number, since it is larger than the sum of its proper divisors (2580833).

38021407 is a wasteful number, since it uses less digits than its factorization.

38021407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42353.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 38021407 is about 6166.1500954810. The cubic root of 38021407 is about 336.2606602389.

The spelling of 38021407 in words is "thirty-eight million, twenty-one thousand, four hundred seven".