38749392 has 120 divisors (see below), whose sum is σ = 125349120. Its totient is φ = 11043840.

The previous prime is 38749369. The next prime is 38749393. The reversal of 38749392 is 29394783.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38749393) 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 23 ways as a sum of consecutive naturals, for example, 26209 + ... + 27647.

It is an arithmetic number, because the mean of its divisors is an integer number (1044576).

Almost surely, 2^38749392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38749392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62674560).

38749392 is an abundant number, since it is smaller than the sum of its proper divisors (86599728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38749392 is a wasteful number, since it uses less digits than its factorization.

38749392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481 (or 1472 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 38749392 is about 6224.9009630676. The cubic root of 38749392 is about 338.3932027540.

The spelling of 38749392 in words is "thirty-eight million, seven hundred forty-nine thousand, three hundred ninety-two".