64900224 has 128 divisors (see below), whose sum is σ = 194616000. Its totient is φ = 21288960.

The previous prime is 64900223. The next prime is 64900229. The reversal of 64900224 is 42200946.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (64900223) 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, 307479 + ... + 307689.

Almost surely, 2^64900224 is an apocalyptic number.

64900224 is a gapful number since it is divisible by the number (64) 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 64900224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97308000).

64900224 is an abundant number, since it is smaller than the sum of its proper divisors (129715776).

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

64900224 is a wasteful number, since it uses less digits than its factorization.

64900224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64900224 is about 8056.0675270258. The cubic root of 64900224 is about 401.8667413067.

The spelling of 64900224 in words is "sixty-four million, nine hundred thousand, two hundred twenty-four".