64141438 has 4 divisors (see below), whose sum is σ = 96212160. Its totient is φ = 32070718.

The previous prime is 64141433. The next prime is 64141447. The reversal of 64141438 is 83414146.

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

It is a super-2 number, since 2×64141438² = 8228248137415688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64141433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16035358 + ... + 16035361.

It is an arithmetic number, because the mean of its divisors is an integer number (24053040).

Almost surely, 2^64141438 is an apocalyptic number.

64141438 is a deficient number, since it is larger than the sum of its proper divisors (32070722).

64141438 is a wasteful number, since it uses less digits than its factorization.

64141438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32070721.

The product of its digits is 9216, while the sum is 31.

The square root of 64141438 is about 8008.8349964274. The cubic root of 64141438 is about 400.2944457011.

The spelling of 64141438 in words is "sixty-four million, one hundred forty-one thousand, four hundred thirty-eight".