64160838 has 48 divisors (see below), whose sum is σ = 160392960. Its totient is φ = 18156528.

The previous prime is 64160827. The next prime is 64160843. The reversal of 64160838 is 83806146.

It is a happy number.

64160838 is a `hidden beast` number, since 6 + 41 + 608 + 3 + 8 = 666.

It is a super-2 number, since 2×64160838² = 8233226265724488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11103 + ... + 15861.

It is an arithmetic number, because the mean of its divisors is an integer number (3341520).

Almost surely, 2^64160838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64160838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80196480).

64160838 is an abundant number, since it is smaller than the sum of its proper divisors (96232122).

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

64160838 is a wasteful number, since it uses less digits than its factorization.

64160838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881 (or 4878 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 64160838 is about 8010.0460672833. The cubic root of 64160838 is about 400.3347988628.

The spelling of 64160838 in words is "sixty-four million, one hundred sixty thousand, eight hundred thirty-eight".