64675842 has 32 divisors (see below), whose sum is σ = 161270784. Its totient is φ = 16798800.

The previous prime is 64675823. The next prime is 64675873. The reversal of 64675842 is 24857646.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 64675794 and 64675803.

It is an unprimeable number.

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, 69534 + ... + 70457.

It is an arithmetic number, because the mean of its divisors is an integer number (5039712).

Almost surely, 2^64675842 is an apocalyptic number.

64675842 is an abundant number, since it is smaller than the sum of its proper divisors (96594942).

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

64675842 is a wasteful number, since it uses less digits than its factorization.

64675842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140014.

The product of its digits is 322560, while the sum is 42.

The square root of 64675842 is about 8042.1291956795. The cubic root of 64675842 is about 401.4030768506.

The spelling of 64675842 in words is "sixty-four million, six hundred seventy-five thousand, eight hundred forty-two".