65442736 has 20 divisors (see below), whose sum is σ = 130886464. Its totient is φ = 31665600.

The previous prime is 65442733. The next prime is 65442739. The reversal of 65442736 is 63724456.

It is an interprime number because it is at equal distance from previous prime (65442733) and next prime (65442739).

65442736 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 65442695 and 65442704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65442733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65475 + ... + 66466.

Almost surely, 2^65442736 is an apocalyptic number.

It is an amenable number.

65442736 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65442736 is a wasteful number, since it uses less digits than its factorization.

65442736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131980 (or 131974 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 65442736 is about 8089.6684728115. The cubic root of 65442736 is about 402.9833930931.

The spelling of 65442736 in words is "sixty-five million, four hundred forty-two thousand, seven hundred thirty-six".