65457242 has 24 divisors (see below), whose sum is σ = 109741716. Its totient is φ = 29176704.

The previous prime is 65457239. The next prime is 65457247. The reversal of 65457242 is 24275456.

It can be written as a sum of positive squares in 2 ways, for example, as 49688401 + 15768841 = 7049^2 + 3971^2 .

It is not an unprimeable number, because it can be changed into a prime (65457247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9608 + ... + 14940.

Almost surely, 2^65457242 is an apocalyptic number.

65457242 is a deficient number, since it is larger than the sum of its proper divisors (44284474).

65457242 is a wasteful number, since it uses less digits than its factorization.

65457242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5390 (or 5371 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 65457242 is about 8090.5649988119. The cubic root of 65457242 is about 403.0131659174.

The spelling of 65457242 in words is "sixty-five million, four hundred fifty-seven thousand, two hundred forty-two".