71770442 has 8 divisors (see below), whose sum is σ = 112336416. Its totient is φ = 34324972.

The previous prime is 71770441. The next prime is 71770463. The reversal of 71770442 is 24407717.

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 = 71770399 and 71770408.

It is not an unprimeable number, because it can be changed into a prime (71770441) 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, 780068 + ... + 780159.

It is an arithmetic number, because the mean of its divisors is an integer number (14042052).

Almost surely, 2^71770442 is an apocalyptic number.

71770442 is a deficient number, since it is larger than the sum of its proper divisors (40565974).

71770442 is a wasteful number, since it uses less digits than its factorization.

71770442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560252.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 71770442 is about 8471.7437402226. The cubic root of 71770442 is about 415.5741643744.

The spelling of 71770442 in words is "seventy-one million, seven hundred seventy thousand, four hundred forty-two".