65400434 has 8 divisors (see below), whose sum is σ = 107018928. Its totient is φ = 29727460.

The previous prime is 65400403. The next prime is 65400449. The reversal of 65400434 is 43400456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1486352 + ... + 1486395.

It is an arithmetic number, because the mean of its divisors is an integer number (13377366).

Almost surely, 2^65400434 is an apocalyptic number.

65400434 is a deficient number, since it is larger than the sum of its proper divisors (41618494).

65400434 is a wasteful number, since it uses less digits than its factorization.

65400434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972760.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 65400434 is about 8087.0534807184. The cubic root of 65400434 is about 402.8965452681.

The spelling of 65400434 in words is "sixty-five million, four hundred thousand, four hundred thirty-four".