64981350 has 144 divisors (see below), whose sum is σ = 204079200. Its totient is φ = 14817600.

The previous prime is 64981337. The next prime is 64981369. The reversal of 64981350 is 5318946.

64981350 is a `hidden beast` number, since 649 + 8 + 1 + 3 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 154140 + ... + 154560.

Almost surely, 2^64981350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64981350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102039600).

64981350 is an abundant number, since it is smaller than the sum of its proper divisors (139097850).

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

64981350 is a wasteful number, since it uses less digits than its factorization.

64981350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 64981350 is about 8061.1010414211. The cubic root of 64981350 is about 402.0341175469.

The spelling of 64981350 in words is "sixty-four million, nine hundred eighty-one thousand, three hundred fifty".