65530438 has 16 divisors (see below), whose sum is σ = 99973440. Its totient is φ = 32210856.

The previous prime is 65530417. The next prime is 65530447. The reversal of 65530438 is 83403556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28645 + ... + 30847.

It is an arithmetic number, because the mean of its divisors is an integer number (6248340).

Almost surely, 2^65530438 is an apocalyptic number.

65530438 is a deficient number, since it is larger than the sum of its proper divisors (34443002).

65530438 is a wasteful number, since it uses less digits than its factorization.

65530438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 65530438 is about 8095.0872756259. The cubic root of 65530438 is about 403.1633299131.

The spelling of 65530438 in words is "sixty-five million, five hundred thirty thousand, four hundred thirty-eight".