64312042 has 12 divisors (see below), whose sum is σ = 99683298. Its totient is φ = 31117800.

The previous prime is 64312021. The next prime is 64312043. The reversal of 64312042 is 24021346.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54893281 + 9418761 = 7409^2 + 3069^2 .

It is not an unprimeable number, because it can be changed into a prime (64312043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14809 + ... + 18652.

Almost surely, 2^64312042 is an apocalyptic number.

64312042 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

64312042 is a deficient number, since it is larger than the sum of its proper divisors (35371256).

64312042 is a wasteful number, since it uses less digits than its factorization.

64312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33525 (or 33494 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 64312042 is about 8019.4789107522. The cubic root of 64312042 is about 400.6490338182.

Adding to 64312042 its reverse (24021346), we get a palindrome (88333388).

The spelling of 64312042 in words is "sixty-four million, three hundred twelve thousand, forty-two".