64169946 has 48 divisors (see below), whose sum is σ = 143589888. Its totient is φ = 20700000.

The previous prime is 64169939. The next prime is 64169981. The reversal of 64169946 is 64996146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85071 + ... + 85821.

It is an arithmetic number, because the mean of its divisors is an integer number (2991456).

Almost surely, 2^64169946 is an apocalyptic number.

64169946 is an abundant number, since it is smaller than the sum of its proper divisors (79419942).

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

64169946 is a wasteful number, since it uses less digits than its factorization.

64169946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 904 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 64169946 is about 8010.6145831640. The cubic root of 64169946 is about 400.3537412423.

The spelling of 64169946 in words is "sixty-four million, one hundred sixty-nine thousand, nine hundred forty-six".