64224480 has 48 divisors (see below), whose sum is σ = 202308624. Its totient is φ = 17126400.

The previous prime is 64224469. The next prime is 64224493. The reversal of 64224480 is 8442246.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66421 + ... + 67380.

It is an arithmetic number, because the mean of its divisors is an integer number (4214763).

Almost surely, 2^64224480 is an apocalyptic number.

64224480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64224480 is an abundant number, since it is smaller than the sum of its proper divisors (138084144).

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

64224480 is a wasteful number, since it uses less digits than its factorization.

64224480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133819 (or 133811 counting only the distinct ones).

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

The square root of 64224480 is about 8014.0177189722. The cubic root of 64224480 is about 400.4671209494.

The spelling of 64224480 in words is "sixty-four million, two hundred twenty-four thousand, four hundred eighty".