64850240 has 224 divisors, whose sum is σ = 202777344. Its totient is φ = 19169280.

The previous prime is 64850237. The next prime is 64850243. The reversal of 64850240 is 4205846.

It is an interprime number because it is at equal distance from previous prime (64850237) and next prime (64850243).

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64850243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494975 + ... + 495105.

It is an arithmetic number, because the mean of its divisors is an integer number (905256).

Almost surely, 2^64850240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64850240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101388672).

64850240 is an abundant number, since it is smaller than the sum of its proper divisors (137927104).

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

64850240 is a wasteful number, since it uses less digits than its factorization.

64850240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 64850240 is about 8052.9646714735. The cubic root of 64850240 is about 401.7635466646.

The spelling of 64850240 in words is "sixty-four million, eight hundred fifty thousand, two hundred forty".