76215442 has 8 divisors (see below), whose sum is σ = 114736716. Its totient is φ = 37969872.

The previous prime is 76215439. The next prime is 76215443. The reversal of 76215442 is 24451267.

It can be written as a sum of positive squares in 2 ways, for example, as 76020961 + 194481 = 8719^2 + 441^2 .

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

It is not an unprimeable number, because it can be changed into a prime (76215443) 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, 68233 + ... + 69340.

Almost surely, 2^76215442 is an apocalyptic number.

76215442 is a deficient number, since it is larger than the sum of its proper divisors (38521274).

76215442 is a wasteful number, since it uses less digits than its factorization.

76215442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137852.

The product of its digits is 13440, while the sum is 31.

The square root of 76215442 is about 8730.1455887058. The cubic root of 76215442 is about 423.9822327016.

The spelling of 76215442 in words is "seventy-six million, two hundred fifteen thousand, four hundred forty-two".