64342442 has 4 divisors (see below), whose sum is σ = 96513666. Its totient is φ = 32171220.

The previous prime is 64342427. The next prime is 64342511. The reversal of 64342442 is 24424346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24424346 = 2 ⋅12212173.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 14371681 = 7069^2 + 3791^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16085609 + ... + 16085612.

Almost surely, 2^64342442 is an apocalyptic number.

64342442 is a deficient number, since it is larger than the sum of its proper divisors (32171224).

64342442 is a wasteful number, since it uses less digits than its factorization.

64342442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32171223.

The product of its digits is 18432, while the sum is 29.

The square root of 64342442 is about 8021.3740718159. The cubic root of 64342442 is about 400.7121521791.

Adding to 64342442 its reverse (24424346), we get a palindrome (88766788).

The spelling of 64342442 in words is "sixty-four million, three hundred forty-two thousand, four hundred forty-two".