64415422 has 4 divisors (see below), whose sum is σ = 96623136. Its totient is φ = 32207710.

The previous prime is 64415399. The next prime is 64415423. The reversal of 64415422 is 22451446.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64415423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16103854 + ... + 16103857.

It is an arithmetic number, because the mean of its divisors is an integer number (24155784).

Almost surely, 2^64415422 is an apocalyptic number.

64415422 is a deficient number, since it is larger than the sum of its proper divisors (32207714).

64415422 is a wasteful number, since it uses less digits than its factorization.

64415422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32207713.

The product of its digits is 7680, while the sum is 28.

The square root of 64415422 is about 8025.9218785134. The cubic root of 64415422 is about 400.8635966602.

Adding to 64415422 its reverse (22451446), we get a palindrome (86866868).

The spelling of 64415422 in words is "sixty-four million, four hundred fifteen thousand, four hundred twenty-two".