64044419 has 12 divisors (see below), whose sum is σ = 67817280. Its totient is φ = 60417600.

The previous prime is 64044413. The next prime is 64044439. The reversal of 64044419 is 91444046.

It is not a de Polignac number, because 64044419 - 2²⁰ = 62995843 is a prime.

It is a super-2 number, since 2×64044419² = 8203375210095122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64044413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51497 + ... + 52725.

It is an arithmetic number, because the mean of its divisors is an integer number (5651440).

Almost surely, 2^64044419 is an apocalyptic number.

64044419 is a deficient number, since it is larger than the sum of its proper divisors (3772861).

64044419 is a wasteful number, since it uses less digits than its factorization.

64044419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64044419 is about 8002.7757059660. The cubic root of 64044419 is about 400.0925181826.

The spelling of 64044419 in words is "sixty-four million, forty-four thousand, four hundred nineteen".