78003042 has 16 divisors (see below), whose sum is σ = 168006720. Its totient is φ = 24000912.

The previous prime is 78003001. The next prime is 78003049. The reversal of 78003042 is 24030087.

It is a super-2 number, since 2×78003042² = 12168949122507528, which contains 22 as substring.

78003042 is a modest number, since divided by 3042 gives 78 as remainder.

It is not an unprimeable number, because it can be changed into a prime (78003049) 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 in 7 ways as a sum of consecutive naturals, for example, 499942 + ... + 500097.

It is an arithmetic number, because the mean of its divisors is an integer number (10500420).

Almost surely, 2^78003042 is an apocalyptic number.

78003042 is an abundant number, since it is smaller than the sum of its proper divisors (90003678).

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

78003042 is a wasteful number, since it uses less digits than its factorization.

78003042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000057.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 78003042 is about 8831.9330839856. The cubic root of 78003042 is about 427.2714225539.

The spelling of 78003042 in words is "seventy-eight million, three thousand, forty-two".