64452746 has 24 divisors (see below), whose sum is σ = 104139756. Its totient is φ = 29811200.

The previous prime is 64452733. The next prime is 64452809. The reversal of 64452746 is 64725446.

It can be written as a sum of positive squares in 6 ways, for example, as 60295225 + 4157521 = 7765^2 + 2039^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470390 + ... + 470526.

Almost surely, 2^64452746 is an apocalyptic number.

64452746 is a deficient number, since it is larger than the sum of its proper divisors (39687010).

64452746 is a wasteful number, since it uses less digits than its factorization.

64452746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 257 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 64452746 is about 8028.2467575430. The cubic root of 64452746 is about 400.9410053696.

The spelling of 64452746 in words is "sixty-four million, four hundred fifty-two thousand, seven hundred forty-six".