71774238 has 32 divisors (see below), whose sum is σ = 156902400. Its totient is φ = 21790080.

The previous prime is 71774233. The next prime is 71774249. The reversal of 71774238 is 83247717.

It is a junction number, because it is equal to n+sod(n) for n = 71774196 and 71774205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71774233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8188 + ... + 14511.

It is an arithmetic number, because the mean of its divisors is an integer number (4903200).

Almost surely, 2^71774238 is an apocalyptic number.

71774238 is an abundant number, since it is smaller than the sum of its proper divisors (85128162).

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

71774238 is a wasteful number, since it uses less digits than its factorization.

71774238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22752.

The product of its digits is 65856, while the sum is 39.

The square root of 71774238 is about 8471.9677761427. The cubic root of 71774238 is about 415.5814909361.

The spelling of 71774238 in words is "seventy-one million, seven hundred seventy-four thousand, two hundred thirty-eight".