64801242 has 64 divisors (see below), whose sum is σ = 158515200. Its totient is φ = 19459440.

The previous prime is 64801241. The next prime is 64801259. The reversal of 64801242 is 24210846.

64801242 is a `hidden beast` number, since 648 + 0 + 12 + 4 + 2 = 666.

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 (64801241) 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, 75009 + ... + 75867.

It is an arithmetic number, because the mean of its divisors is an integer number (2476800).

Almost surely, 2^64801242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64801242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79257600).

64801242 is an abundant number, since it is smaller than the sum of its proper divisors (93713958).

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

64801242 is a wasteful number, since it uses less digits than its factorization.

64801242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 64801242 is about 8049.9218629748. The cubic root of 64801242 is about 401.6623361925.

The spelling of 64801242 in words is "sixty-four million, eight hundred one thousand, two hundred forty-two".