39489282 has 80 divisors (see below), whose sum is σ = 102453120. Its totient is φ = 11135232.

The previous prime is 39489227. The next prime is 39489287. The reversal of 39489282 is 28298493.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (39489287) 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 39 ways as a sum of consecutive naturals, for example, 109819 + ... + 110177.

It is an arithmetic number, because the mean of its divisors is an integer number (1280664).

Almost surely, 2^39489282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39489282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51226560).

39489282 is an abundant number, since it is smaller than the sum of its proper divisors (62963838).

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

39489282 is a wasteful number, since it uses less digits than its factorization.

39489282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477 (or 468 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 39489282 is about 6284.0498088414. The cubic root of 39489282 is about 340.5334244974.

It can be divided in two parts, 394 and 89282, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 39489282 in words is "thirty-nine million, four hundred eighty-nine thousand, two hundred eighty-two".