64422480 has 80 divisors (see below), whose sum is σ = 204611904. Its totient is φ = 16757760.

The previous prime is 64422461. The next prime is 64422481. The reversal of 64422480 is 8422446.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64422481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6567 + ... + 13113.

Almost surely, 2^64422480 is an apocalyptic number.

64422480 is a gapful number since it is divisible by the number (60) 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 64422480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102305952).

64422480 is an abundant number, since it is smaller than the sum of its proper divisors (140189424).

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

64422480 is a wasteful number, since it uses less digits than its factorization.

64422480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6604 (or 6598 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 64422480 is about 8026.3615667374. The cubic root of 64422480 is about 400.8782370049.

The spelling of 64422480 in words is "sixty-four million, four hundred twenty-two thousand, four hundred eighty".