71367642 has 56 divisors (see below), whose sum is σ = 165786240. Its totient is φ = 23007240.

The previous prime is 71367623. The next prime is 71367671. The reversal of 71367642 is 24676317.

71367642 is a `hidden beast` number, since 7 + 1 + 3 + 6 + 7 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 71367597 and 71367606.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 44409 + ... + 45987.

Almost surely, 2^71367642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71367642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82893120).

71367642 is an abundant number, since it is smaller than the sum of its proper divisors (94418598).

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

71367642 is a wasteful number, since it uses less digits than its factorization.

71367642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1615 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 71367642 is about 8447.9371446525. The cubic root of 71367642 is about 414.7952577906.

The spelling of 71367642 in words is "seventy-one million, three hundred sixty-seven thousand, six hundred forty-two".