64124544 has 256 divisors, whose sum is σ = 211507200. Its totient is φ = 16957440.

The previous prime is 64124531. The next prime is 64124569. The reversal of 64124544 is 44542146.

It is a happy number.

It is a super-2 number, since 2×64124544² = 8223914286415872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1364329 + ... + 1364375.

It is an arithmetic number, because the mean of its divisors is an integer number (826200).

Almost surely, 2^64124544 is an apocalyptic number.

64124544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64124544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105753600).

64124544 is an abundant number, since it is smaller than the sum of its proper divisors (147382656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64124544 is a wasteful number, since it uses less digits than its factorization.

64124544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 99 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 64124544 is about 8007.7802167642. The cubic root of 64124544 is about 400.2592985410.

The spelling of 64124544 in words is "sixty-four million, one hundred twenty-four thousand, five hundred forty-four".