71407742 has 16 divisors (see below), whose sum is σ = 122774400. Its totient is φ = 30513048.

The previous prime is 71407741. The next prime is 71407747. The reversal of 71407742 is 24770417.

It is a junction number, because it is equal to n+sod(n) for n = 71407699 and 71407708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71407741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492 + ... + 12207.

It is an arithmetic number, because the mean of its divisors is an integer number (7673400).

Almost surely, 2^71407742 is an apocalyptic number.

71407742 is a deficient number, since it is larger than the sum of its proper divisors (51366658).

71407742 is a wasteful number, since it uses less digits than its factorization.

71407742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15055.

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

The square root of 71407742 is about 8450.3101718221. The cubic root of 71407742 is about 414.8729315330.

The spelling of 71407742 in words is "seventy-one million, four hundred seven thousand, seven hundred forty-two".