71433438 has 32 divisors (see below), whose sum is σ = 148608000. Its totient is φ = 22863456.

The previous prime is 71433437. The next prime is 71433463. The reversal of 71433438 is 83433417.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71433399 and 71433408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71433437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33595 + ... + 35657.

It is an arithmetic number, because the mean of its divisors is an integer number (4644000).

Almost surely, 2^71433438 is an apocalyptic number.

71433438 is an abundant number, since it is smaller than the sum of its proper divisors (77174562).

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

71433438 is a wasteful number, since it uses less digits than its factorization.

71433438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296.

The product of its digits is 24192, while the sum is 33.

The square root of 71433438 is about 8451.8304526298. The cubic root of 71433438 is about 414.9226894260.

The spelling of 71433438 in words is "seventy-one million, four hundred thirty-three thousand, four hundred thirty-eight".