38734040 has 64 divisors (see below), whose sum is σ = 89964000. Its totient is φ = 15003648.

The previous prime is 38734039. The next prime is 38734049. The reversal of 38734040 is 4043783.

It is a junction number, because it is equal to n+sod(n) for n = 38733994 and 38734012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38734049) 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 15 ways as a sum of consecutive naturals, for example, 259886 + ... + 260034.

Almost surely, 2^38734040 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 38734040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44982000).

38734040 is an abundant number, since it is smaller than the sum of its proper divisors (51229960).

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

38734040 is a wasteful number, since it uses less digits than its factorization.

38734040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 38734040 is about 6223.6677289200. The cubic root of 38734040 is about 338.3485078707.

The spelling of 38734040 in words is "thirty-eight million, seven hundred thirty-four thousand, forty".