78498242 has 8 divisors (see below), whose sum is σ = 118217232. Its totient is φ = 39092500.

The previous prime is 78498229. The next prime is 78498269. The reversal of 78498242 is 24289487.

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

It is a junction number, because it is equal to n+sod(n) for n = 78498193 and 78498202.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 77684 + ... + 78687.

It is an arithmetic number, because the mean of its divisors is an integer number (14777154).

Almost surely, 2^78498242 is an apocalyptic number.

78498242 is a deficient number, since it is larger than the sum of its proper divisors (39718990).

78498242 is a wasteful number, since it uses less digits than its factorization.

78498242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156624.

The product of its digits is 258048, while the sum is 44.

The square root of 78498242 is about 8859.9233630997. The cubic root of 78498242 is about 428.1736892216.

The spelling of 78498242 in words is "seventy-eight million, four hundred ninety-eight thousand, two hundred forty-two".