38749633 has 8 divisors (see below), whose sum is σ = 42748776. Its totient is φ = 34896000.

The previous prime is 38749553. The next prime is 38749637. The reversal of 38749633 is 33694783.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 38526849 = 472^2 + 6207^2 .

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 38749633 - 2¹³ = 38741441 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 38749633.

It is not an unprimeable number, because it can be changed into a prime (38749637) 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, 35818 + ... + 36883.

It is an arithmetic number, because the mean of its divisors is an integer number (5343597).

Almost surely, 2^38749633 is an apocalyptic number.

It is an amenable number.

38749633 is a deficient number, since it is larger than the sum of its proper divisors (3999143).

38749633 is a wasteful number, since it uses less digits than its factorization.

38749633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72755.

The product of its digits is 326592, while the sum is 43.

The square root of 38749633 is about 6224.9203207752. The cubic root of 38749633 is about 338.3939042927.

The spelling of 38749633 in words is "thirty-eight million, seven hundred forty-nine thousand, six hundred thirty-three".