38888661 has 8 divisors (see below), whose sum is σ = 59258944. Its totient is φ = 22222080.

The previous prime is 38888651. The next prime is 38888677. The reversal of 38888661 is 16688883.

It is a happy number.

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

It is not a de Polignac number, because 38888661 - 2²² = 34694357 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 38888661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38888621) 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, 925900 + ... + 925941.

It is an arithmetic number, because the mean of its divisors is an integer number (7407368).

Almost surely, 2^38888661 is an apocalyptic number.

It is an amenable number.

38888661 is a deficient number, since it is larger than the sum of its proper divisors (20370283).

38888661 is a wasteful number, since it uses less digits than its factorization.

38888661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851851.

The product of its digits is 442368, while the sum is 48.

The square root of 38888661 is about 6236.0773728362. The cubic root of 38888661 is about 338.7981238167.

The spelling of 38888661 in words is "thirty-eight million, eight hundred eighty-eight thousand, six hundred sixty-one".