65730402 has 48 divisors (see below), whose sum is σ = 146903328. Its totient is φ = 21228480.

The previous prime is 65730397. The next prime is 65730403. The reversal of 65730402 is 20403756.

It is a happy number.

65730402 is a `hidden beast` number, since 657 + 3 + 0 + 4 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (65730403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125902 + ... + 126422.

It is an arithmetic number, because the mean of its divisors is an integer number (3060486).

Almost surely, 2^65730402 is an apocalyptic number.

65730402 is an abundant number, since it is smaller than the sum of its proper divisors (81172926).

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

65730402 is a wasteful number, since it uses less digits than its factorization.

65730402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 65730402 is about 8107.4288155987. The cubic root of 65730402 is about 403.5729934327.

The spelling of 65730402 in words is "sixty-five million, seven hundred thirty thousand, four hundred two".