64781024 has 96 divisors (see below), whose sum is σ = 161989632. Its totient is φ = 24768000.

The previous prime is 64781023. The next prime is 64781063. The reversal of 64781024 is 42018746.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64781021) 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, 150089 + ... + 150519.

It is an arithmetic number, because the mean of its divisors is an integer number (1687392).

Almost surely, 2^64781024 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 64781024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80994816).

64781024 is an abundant number, since it is smaller than the sum of its proper divisors (97208608).

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

64781024 is a wasteful number, since it uses less digits than its factorization.

64781024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64781024 is about 8048.6659764212. The cubic root of 64781024 is about 401.6205589386.

The spelling of 64781024 in words is "sixty-four million, seven hundred eighty-one thousand, twenty-four".