64405322 has 16 divisors (see below), whose sum is σ = 99107712. Its totient is φ = 31375680.

The previous prime is 64405309. The next prime is 64405331. The reversal of 64405322 is 22350446.

It is a junction number, because it is equal to n+sod(n) for n = 64405291 and 64405300.

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, 21233 + ... + 24075.

It is an arithmetic number, because the mean of its divisors is an integer number (6194232).

Almost surely, 2^64405322 is an apocalyptic number.

64405322 is a deficient number, since it is larger than the sum of its proper divisors (34702390).

64405322 is a wasteful number, since it uses less digits than its factorization.

64405322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 64405322 is about 8025.2926426393. The cubic root of 64405322 is about 400.8426444626.

Adding to 64405322 its reverse (22350446), we get a palindrome (86755768).

The spelling of 64405322 in words is "sixty-four million, four hundred five thousand, three hundred twenty-two".