38051440 has 120 divisors (see below), whose sum is σ = 109158192. Its totient is φ = 12257280.

The previous prime is 38051437. The next prime is 38051443. The reversal of 38051440 is 4415083.

It is an interprime number because it is at equal distance from previous prime (38051437) and next prime (38051443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38051443) 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, 66355 + ... + 66925.

Almost surely, 2^38051440 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 38051440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54579096).

38051440 is an abundant number, since it is smaller than the sum of its proper divisors (71106752).

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

38051440 is a wasteful number, since it uses less digits than its factorization.

38051440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 38051440 is about 6168.5849268694. The cubic root of 38051440 is about 336.3491740467.

The spelling of 38051440 in words is "thirty-eight million, fifty-one thousand, four hundred forty".