71442742 has 16 divisors (see below), whose sum is σ = 123599520. Its totient is φ = 30336768.

The previous prime is 71442739. The next prime is 71442751. The reversal of 71442742 is 24724417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21883 + ... + 24934.

It is an arithmetic number, because the mean of its divisors is an integer number (7724970).

Almost surely, 2^71442742 is an apocalyptic number.

71442742 is a deficient number, since it is larger than the sum of its proper divisors (52156778).

71442742 is a wasteful number, since it uses less digits than its factorization.

71442742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46935.

The product of its digits is 12544, while the sum is 31.

The square root of 71442742 is about 8452.3808480215. The cubic root of 71442742 is about 414.9407028066.

The spelling of 71442742 in words is "seventy-one million, four hundred forty-two thousand, seven hundred forty-two".