39481000 has 64 divisors (see below), whose sum is σ = 99524880. Its totient is φ = 14572800.

The previous prime is 39480997. The next prime is 39481007. The reversal of 39481000 is 18493.

39481000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1214404 + 38266596 = 1102^2 + 6186^2 .

It is a super-2 number, since 2×39481000² = 3117498722000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (39481007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11482 + ... + 14518.

Almost surely, 2^39481000 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 39481000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49762440).

39481000 is an abundant number, since it is smaller than the sum of its proper divisors (60043880).

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

39481000 is a wasteful number, since it uses less digits than its factorization.

39481000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071 (or 3057 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 39481000 is about 6283.3908043349. The cubic root of 39481000 is about 340.5096163916.

Adding to 39481000 its reverse (18493), we get a palindrome (39499493).

The spelling of 39481000 in words is "thirty-nine million, four hundred eighty-one thousand".