38030440 has 64 divisors (see below), whose sum is σ = 99221760. Its totient is φ = 12848640.

The previous prime is 38030401. The next prime is 38030441. The reversal of 38030440 is 4403083.

It is not an unprimeable number, because it can be changed into a prime (38030441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18924 + ... + 20836.

It is an arithmetic number, because the mean of its divisors is an integer number (1550340).

Almost surely, 2^38030440 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 38030440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49610880).

38030440 is an abundant number, since it is smaller than the sum of its proper divisors (61191320).

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

38030440 is a wasteful number, since it uses less digits than its factorization.

38030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 1998 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 38030440 is about 6166.8825187448. The cubic root of 38030440 is about 336.2872873618.

The spelling of 38030440 in words is "thirty-eight million, thirty thousand, four hundred forty".