64042242 has 32 divisors (see below), whose sum is σ = 140215104. Its totient is φ = 19339200.

The previous prime is 64042241. The next prime is 64042261. The reversal of 64042242 is 24224046.

It is not an unprimeable number, because it can be changed into a prime (64042241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19392 + ... + 22452.

It is an arithmetic number, because the mean of its divisors is an integer number (4381722).

Almost surely, 2^64042242 is an apocalyptic number.

64042242 is an abundant number, since it is smaller than the sum of its proper divisors (76172862).

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

64042242 is a wasteful number, since it uses less digits than its factorization.

64042242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 64042242 is about 8002.6396895025. The cubic root of 64042242 is about 400.0879848119.

Adding to 64042242 its reverse (24224046), we get a palindrome (88266288).

It can be divided in two parts, 6404 and 2242, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 64042242 in words is "sixty-four million, forty-two thousand, two hundred forty-two".