64484910 has 192 divisors, whose sum is σ = 211341312. Its totient is φ = 13810176.

The previous prime is 64484873. The next prime is 64484957. The reversal of 64484910 is 1948446.

It is a happy number.

64484910 is a `hidden beast` number, since 644 + 8 + 4 + 9 + 1 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 289059 + ... + 289281.

It is an arithmetic number, because the mean of its divisors is an integer number (1100736).

Almost surely, 2^64484910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64484910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105670656).

64484910 is an abundant number, since it is smaller than the sum of its proper divisors (146856402).

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

64484910 is a wasteful number, since it uses less digits than its factorization.

64484910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 64484910 is about 8030.2496847856. The cubic root of 64484910 is about 401.0076884449.

Subtracting from 64484910 its reverse (1948446), we obtain a square (62536464 = 7908²).

The spelling of 64484910 in words is "sixty-four million, four hundred eighty-four thousand, nine hundred ten".