64209132 has 192 divisors, whose sum is σ = 197568000. Its totient is φ = 17853696.

The previous prime is 64209127. The next prime is 64209143. The reversal of 64209132 is 23190246.

64209132 is a `hidden beast` number, since 642 + 0 + 9 + 13 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64209096 and 64209105.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 773563 + ... + 773645.

It is an arithmetic number, because the mean of its divisors is an integer number (1029000).

Almost surely, 2^64209132 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 64209132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98784000).

64209132 is an abundant number, since it is smaller than the sum of its proper divisors (133358868).

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

64209132 is a wasteful number, since it uses less digits than its factorization.

64209132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64209132 is about 8013.0600896287. The cubic root of 64209132 is about 400.4352179582.

Adding to 64209132 its reverse (23190246), we get a palindrome (87399378).

The spelling of 64209132 in words is "sixty-four million, two hundred nine thousand, one hundred thirty-two".