64451434 has 8 divisors (see below), whose sum is σ = 96796260. Its totient is φ = 32186016.

The previous prime is 64451417. The next prime is 64451459. The reversal of 64451434 is 43415446.

It can be written as a sum of positive squares in 2 ways, for example, as 55130625 + 9320809 = 7425^2 + 3053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64451396 and 64451405.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 17779 + ... + 21094.

Almost surely, 2^64451434 is an apocalyptic number.

64451434 is a deficient number, since it is larger than the sum of its proper divisors (32344826).

64451434 is a wasteful number, since it uses less digits than its factorization.

64451434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39704.

The product of its digits is 23040, while the sum is 31.

The square root of 64451434 is about 8028.1650456378. The cubic root of 64451434 is about 400.9382848330.

The spelling of 64451434 in words is "sixty-four million, four hundred fifty-one thousand, four hundred thirty-four".