64415438 has 8 divisors (see below), whose sum is σ = 99955080. Its totient is φ = 31097080.

The previous prime is 64415423. The next prime is 64415443. The reversal of 64415438 is 83451446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 64415398 and 64415407.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 555248 + ... + 555363.

It is an arithmetic number, because the mean of its divisors is an integer number (12494385).

Almost surely, 2^64415438 is an apocalyptic number.

64415438 is a deficient number, since it is larger than the sum of its proper divisors (35539642).

64415438 is a wasteful number, since it uses less digits than its factorization.

64415438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110642.

The product of its digits is 46080, while the sum is 35.

The square root of 64415438 is about 8025.9228752836. The cubic root of 64415438 is about 400.8636298501.

The spelling of 64415438 in words is "sixty-four million, four hundred fifteen thousand, four hundred thirty-eight".