778003242 has 32 divisors (see below), whose sum is σ = 1611187200. Its totient is φ = 250154688.

The previous prime is 778003223. The next prime is 778003243. The reversal of 778003242 is 242300877.

It is not an unprimeable number, because it can be changed into a prime (778003243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346359 + ... + 348597.

It is an arithmetic number, because the mean of its divisors is an integer number (50349600).

Almost surely, 2^778003242 is an apocalyptic number.

778003242 is an abundant number, since it is smaller than the sum of its proper divisors (833183958).

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

778003242 is a wasteful number, since it uses less digits than its factorization.

778003242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 778003242 is about 27892.7094775678. The cubic root of 778003242 is about 919.7302462124.

The spelling of 778003242 in words is "seven hundred seventy-eight million, three thousand, two hundred forty-two".