71374642 has 16 divisors (see below), whose sum is σ = 108461880. Its totient is φ = 35223552.

The previous prime is 71374627. The next prime is 71374643. The reversal of 71374642 is 24647317.

It can be written as a sum of positive squares in 4 ways, for example, as 10830681 + 60543961 = 3291^2 + 7781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71374598 and 71374607.

It is not an unprimeable number, because it can be changed into a prime (71374643) 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, 70234 + ... + 71242.

Almost surely, 2^71374642 is an apocalyptic number.

71374642 is a deficient number, since it is larger than the sum of its proper divisors (37087238).

71374642 is a wasteful number, since it uses less digits than its factorization.

71374642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437.

The product of its digits is 28224, while the sum is 34.

The square root of 71374642 is about 8448.3514368189. The cubic root of 71374642 is about 414.8088188938.

The spelling of 71374642 in words is "seventy-one million, three hundred seventy-four thousand, six hundred forty-two".