39402 has 24 divisors (see below), whose sum is σ = 93600. Its totient is φ = 11880.

The previous prime is 39397. The next prime is 39409. The reversal of 39402 is 20493.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 3⁸ + 9 + 4³ + 0 + 2¹⁵ .

It is not an unprimeable number, because it can be changed into a prime (39409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99 + ... + 297.

It is an arithmetic number, because the mean of its divisors is an integer number (3900).

2³⁹⁴⁰² is an apocalyptic number.

It is a pronic number, being equal to 198×199.

It is a practical number, because each smaller number is the sum of distinct divisors of 39402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46800).

39402 is an abundant number, since it is smaller than the sum of its proper divisors (54198).

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

39402 is a wasteful number, since it uses less digits than its factorization.

39402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 39402 is about 198.4993702761. The cubic root of 39402 is about 34.0282349083.

Adding to 39402 its reverse (20493), we get a palindrome (59895).

It can be divided in two parts, 39 and 402, that added together give a square (441 = 21²).

The spelling of 39402 in words is "thirty-nine thousand, four hundred two".