64424002 has 4 divisors (see below), whose sum is σ = 96636006. Its totient is φ = 32212000.

The previous prime is 64423987. The next prime is 64424011. The reversal of 64424002 is 20042446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57289761 + 7134241 = 7569^2 + 2671^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105999 + ... + 16106002.

Almost surely, 2^64424002 is an apocalyptic number.

64424002 is a deficient number, since it is larger than the sum of its proper divisors (32212004).

64424002 is a wasteful number, since it uses less digits than its factorization.

64424002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32212003.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 64424002 is about 8026.4563787515. The cubic root of 64424002 is about 400.8813939353.

Adding to 64424002 its reverse (20042446), we get a palindrome (84466448).

The spelling of 64424002 in words is "sixty-four million, four hundred twenty-four thousand, two".