78296242 has 4 divisors (see below), whose sum is σ = 117444366. Its totient is φ = 39148120.

The previous prime is 78296233. The next prime is 78296243. The reversal of 78296242 is 24269287.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77105961 + 1190281 = 8781^2 + 1091^2 .

It is a super-2 number, since 2×78296242² = 12260603022645128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78296195 and 78296204.

It is not an unprimeable number, because it can be changed into a prime (78296243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19574059 + ... + 19574062.

Almost surely, 2^78296242 is an apocalyptic number.

78296242 is a deficient number, since it is larger than the sum of its proper divisors (39148124).

78296242 is a wasteful number, since it uses less digits than its factorization.

78296242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39148123.

The product of its digits is 96768, while the sum is 40.

The square root of 78296242 is about 8848.5163728164. The cubic root of 78296242 is about 427.8060997546.

The spelling of 78296242 in words is "seventy-eight million, two hundred ninety-six thousand, two hundred forty-two".