71418738 has 8 divisors (see below), whose sum is σ = 142837488. Its totient is φ = 23806244.

The previous prime is 71418731. The next prime is 71418797. The reversal of 71418738 is 83781417.

It is a sphenic number, since it is the product of 3 distinct primes.

71418738 is an admirable number.

It is a super-2 number, since 2×71418738² = 10201272275025288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71418696 and 71418705.

It is not an unprimeable number, because it can be changed into a prime (71418731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5951556 + ... + 5951567.

It is an arithmetic number, because the mean of its divisors is an integer number (17854686).

Almost surely, 2^71418738 is an apocalyptic number.

71418738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71418738 is a wasteful number, since it uses less digits than its factorization.

71418738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903128.

The product of its digits is 37632, while the sum is 39.

The square root of 71418738 is about 8450.9607737819. The cubic root of 71418738 is about 414.8942257161.

The spelling of 71418738 in words is "seventy-one million, four hundred eighteen thousand, seven hundred thirty-eight".