65429538 has 32 divisors (see below), whose sum is σ = 133324800. Its totient is φ = 21402576.

The previous prime is 65429527. The next prime is 65429543. The reversal of 65429538 is 83592456.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65429538.

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, 105393 + ... + 106011.

It is an arithmetic number, because the mean of its divisors is an integer number (4166400).

Almost surely, 2^65429538 is an apocalyptic number.

65429538 is an abundant number, since it is smaller than the sum of its proper divisors (67895262).

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

65429538 is a wasteful number, since it uses less digits than its factorization.

65429538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 259200, while the sum is 42.

The square root of 65429538 is about 8088.8526998580. The cubic root of 65429538 is about 402.9563010494.

The spelling of 65429538 in words is "sixty-five million, four hundred twenty-nine thousand, five hundred thirty-eight".