64405342 has 8 divisors (see below), whose sum is σ = 98964432. Its totient is φ = 31417200.

The previous prime is 64405337. The next prime is 64405343. The reversal of 64405342 is 24350446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 64405342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64405343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392634 + ... + 392797.

It is an arithmetic number, because the mean of its divisors is an integer number (12370554).

Almost surely, 2^64405342 is an apocalyptic number.

64405342 is a deficient number, since it is larger than the sum of its proper divisors (34559090).

64405342 is a wasteful number, since it uses less digits than its factorization.

64405342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785474.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 64405342 is about 8025.2938886997. The cubic root of 64405342 is about 400.8426859543.

Adding to 64405342 its reverse (24350446), we get a palindrome (88755788).

The spelling of 64405342 in words is "sixty-four million, four hundred five thousand, three hundred forty-two".