71442466 has 8 divisors (see below), whose sum is σ = 113467500. Its totient is φ = 33619968.

The previous prime is 71442461. The next prime is 71442467. The reversal of 71442466 is 66424417.

It can be written as a sum of positive squares in 2 ways, for example, as 61387225 + 10055241 = 7835^2 + 3171^2 .

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

It is a super-2 number, since 2×71442466² = 10208051896322312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 2101249 = 71442466 / (7 + 1 + 4 + 4 + 2 + 4 + 6 + 6).

It is not an unprimeable number, because it can be changed into a prime (71442461) 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, 1050591 + ... + 1050658.

Almost surely, 2^71442466 is an apocalyptic number.

71442466 is a deficient number, since it is larger than the sum of its proper divisors (42025034).

71442466 is a wasteful number, since it uses less digits than its factorization.

71442466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101268.

The product of its digits is 32256, while the sum is 34.

The square root of 71442466 is about 8452.3645212449. The cubic root of 71442466 is about 414.9401684683.

The spelling of 71442466 in words is "seventy-one million, four hundred forty-two thousand, four hundred sixty-six".