39645102 has 16 divisors (see below), whose sum is σ = 90617472. Its totient is φ = 11327160.

The previous prime is 39645083. The next prime is 39645103. The reversal of 39645102 is 20154693.

It is a super-2 number, since 2×39645102² = 3143468225180808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39645102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39645103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471924 + ... + 472007.

It is an arithmetic number, because the mean of its divisors is an integer number (5663592).

Almost surely, 2^39645102 is an apocalyptic number.

39645102 is an abundant number, since it is smaller than the sum of its proper divisors (50972370).

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

39645102 is a wasteful number, since it uses less digits than its factorization.

39645102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943943.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 39645102 is about 6296.4356583705. The cubic root of 39645102 is about 340.9807380984.

Adding to 39645102 its reverse (20154693), we get a palindrome (59799795).

The spelling of 39645102 in words is "thirty-nine million, six hundred forty-five thousand, one hundred two".