64424406 has 32 divisors (see below), whose sum is σ = 133740288. Its totient is φ = 20674080.

The previous prime is 64424389. The next prime is 64424413. The reversal of 64424406 is 60442446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16560 + ... + 20076.

It is an arithmetic number, because the mean of its divisors is an integer number (4179384).

Almost surely, 2^64424406 is an apocalyptic number.

64424406 is an abundant number, since it is smaller than the sum of its proper divisors (69315882).

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

64424406 is a wasteful number, since it uses less digits than its factorization.

64424406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 64424406 is about 8026.4815454843. The cubic root of 64424406 is about 400.8822319033.

It can be divided in two parts, 6442440 and 6, that added together give a palindrome (6442446).

The spelling of 64424406 in words is "sixty-four million, four hundred twenty-four thousand, four hundred six".