64414428 has 96 divisors (see below), whose sum is σ = 173746944. Its totient is φ = 18398208.

The previous prime is 64414417. The next prime is 64414429. The reversal of 64414428 is 82441446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64414429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283651 + ... + 283877.

It is an arithmetic number, because the mean of its divisors is an integer number (1809864).

Almost surely, 2^64414428 is an apocalyptic number.

64414428 is a gapful number since it is divisible by the number (68) 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 64414428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86873472).

64414428 is an abundant number, since it is smaller than the sum of its proper divisors (109332516).

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

64414428 is a wasteful number, since it uses less digits than its factorization.

64414428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 64414428 is about 8025.8599539239. The cubic root of 64414428 is about 400.8615347292.

The spelling of 64414428 in words is "sixty-four million, four hundred fourteen thousand, four hundred twenty-eight".