64451436 has 24 divisors (see below), whose sum is σ = 171870720. Its totient is φ = 18414672.

The previous prime is 64451417. The next prime is 64451459. The reversal of 64451436 is 63415446.

It is a junction number, because it is equal to n+sod(n) for n = 64451397 and 64451406.

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 7 ways as a sum of consecutive naturals, for example, 383556 + ... + 383723.

It is an arithmetic number, because the mean of its divisors is an integer number (7161280).

Almost surely, 2^64451436 is an apocalyptic number.

It is an amenable number.

64451436 is an abundant number, since it is smaller than the sum of its proper divisors (107419284).

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

64451436 is a wasteful number, since it uses less digits than its factorization.

64451436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767293 (or 767291 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 64451436 is about 8028.1651701992. The cubic root of 64451436 is about 400.9382889802.

The spelling of 64451436 in words is "sixty-four million, four hundred fifty-one thousand, four hundred thirty-six".