71378234 has 8 divisors (see below), whose sum is σ = 107174100. Its totient is φ = 35653536.

The previous prime is 71378201. The next prime is 71378239. The reversal of 71378234 is 43287317.

It can be written as a sum of positive squares in 2 ways, for example, as 48958009 + 22420225 = 6997^2 + 4735^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 71378194 and 71378203.

It is not an unprimeable number, because it can be changed into a prime (71378239) 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, 15209 + ... + 19340.

Almost surely, 2^71378234 is an apocalyptic number.

71378234 is a deficient number, since it is larger than the sum of its proper divisors (35795866).

71378234 is a wasteful number, since it uses less digits than its factorization.

71378234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35584.

The product of its digits is 28224, while the sum is 35.

The square root of 71378234 is about 8448.5640199977. The cubic root of 71378234 is about 414.8157773329.

The spelling of 71378234 in words is "seventy-one million, three hundred seventy-eight thousand, two hundred thirty-four".