75216434 has 8 divisors (see below), whose sum is σ = 114953580. Its totient is φ = 36898576.

The previous prime is 75216433. The next prime is 75216443. The reversal of 75216434 is 43461257.

It can be written as a sum of positive squares in 2 ways, for example, as 59336209 + 15880225 = 7703^2 + 3985^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 75216434.

It is not an unprimeable number, because it can be changed into a prime (75216433) 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, 354689 + ... + 354900.

Almost surely, 2^75216434 is an apocalyptic number.

75216434 is a deficient number, since it is larger than the sum of its proper divisors (39737146).

75216434 is a wasteful number, since it uses less digits than its factorization.

75216434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709644.

The product of its digits is 20160, while the sum is 32.

The square root of 75216434 is about 8672.7408585752. The cubic root of 75216434 is about 422.1216041814.

The spelling of 75216434 in words is "seventy-five million, two hundred sixteen thousand, four hundred thirty-four".