38787732 has 72 divisors (see below), whose sum is σ = 103488840. Its totient is φ = 12230400.

The previous prime is 38787719. The next prime is 38787733. The reversal of 38787732 is 23778783.

It can be written as a sum of positive squares in 4 ways, for example, as 16941456 + 21846276 = 4116^2 + 4674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38787733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54982 + ... + 55682.

It is an arithmetic number, because the mean of its divisors is an integer number (1437345).

Almost surely, 2^38787732 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 38787732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51744420).

38787732 is an abundant number, since it is smaller than the sum of its proper divisors (64701108).

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

38787732 is a wasteful number, since it uses less digits than its factorization.

38787732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 38787732 is about 6227.9797687533. The cubic root of 38787732 is about 338.5047719778.

The spelling of 38787732 in words is "thirty-eight million, seven hundred eighty-seven thousand, seven hundred thirty-two".