38902641 has 4 divisors (see below), whose sum is σ = 51870192. Its totient is φ = 25935092.

The previous prime is 38902639. The next prime is 38902663. The reversal of 38902641 is 14620983.

38902641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38902641 - 2¹ = 38902639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38902691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6483771 + ... + 6483776.

It is an arithmetic number, because the mean of its divisors is an integer number (12967548).

Almost surely, 2^38902641 is an apocalyptic number.

It is an amenable number.

38902641 is a deficient number, since it is larger than the sum of its proper divisors (12967551).

38902641 is a wasteful number, since it uses less digits than its factorization.

38902641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12967550.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 38902641 is about 6237.1981690499. The cubic root of 38902641 is about 338.8387168859.

The spelling of 38902641 in words is "thirty-eight million, nine hundred two thousand, six hundred forty-one".