71601426 has 48 divisors (see below), whose sum is σ = 169600704. Its totient is φ = 21697632.

The previous prime is 71601421. The next prime is 71601427. The reversal of 71601426 is 62410617.

It is a self number, because there is not a number n which added to its sum of digits gives 71601426.

It is not an unprimeable number, because it can be changed into a prime (71601421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13395 + ... + 17961.

It is an arithmetic number, because the mean of its divisors is an integer number (3533348).

Almost surely, 2^71601426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71601426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84800352).

71601426 is an abundant number, since it is smaller than the sum of its proper divisors (97999278).

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

71601426 is a wasteful number, since it uses less digits than its factorization.

71601426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655 (or 4652 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 71601426 is about 8461.7625823465. The cubic root of 71601426 is about 415.2476887877.

It can be divided in two parts, 71601 and 426, that added together give a palindrome (72027).

The spelling of 71601426 in words is "seventy-one million, six hundred one thousand, four hundred twenty-six".