64464344 has 64 divisors (see below), whose sum is σ = 142560000. Its totient is φ = 26759808.

The previous prime is 64464319. The next prime is 64464347. The reversal of 64464344 is 44346446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64464347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360047 + ... + 360225.

It is an arithmetic number, because the mean of its divisors is an integer number (2227500).

Almost surely, 2^64464344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64464344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71280000).

64464344 is an abundant number, since it is smaller than the sum of its proper divisors (78095656).

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

64464344 is a wasteful number, since it uses less digits than its factorization.

64464344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 356 counting only the distinct ones).

The product of its digits is 110592, while the sum is 35.

The square root of 64464344 is about 8028.9690496352. The cubic root of 64464344 is about 400.9650531420.

The spelling of 64464344 in words is "sixty-four million, four hundred sixty-four thousand, three hundred forty-four".