38901930 has 64 divisors (see below), whose sum is σ = 99187200. Its totient is φ = 9737280.

The previous prime is 38901893. The next prime is 38901959. The reversal of 38901930 is 3910983.

It is a junction number, because it is equal to n+sod(n) for n = 38901891 and 38901900.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 78985 + ... + 79475.

It is an arithmetic number, because the mean of its divisors is an integer number (1549800).

Almost surely, 2^38901930 is an apocalyptic number.

38901930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38901930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49593600).

38901930 is an abundant number, since it is smaller than the sum of its proper divisors (60285270).

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

38901930 is a wasteful number, since it uses less digits than its factorization.

38901930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 38901930 is about 6237.1411720435. The cubic root of 38901930 is about 338.8366526234.

The spelling of 38901930 in words is "thirty-eight million, nine hundred one thousand, nine hundred thirty".