7420386078 has 64 divisors (see below), whose sum is σ = 19495296000. Its totient is φ = 2047000032.

The previous prime is 7420386073. The next prime is 7420386097. The reversal of 7420386078 is 8706830247.

It is a happy number.

7420386078 is a `hidden beast` number, since 7 + 4 + 2 + 0 + 38 + 607 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420386073) 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 31 ways as a sum of consecutive naturals, for example, 327498 + ... + 349421.

It is an arithmetic number, because the mean of its divisors is an integer number (304614000).

Almost surely, 2^7420386078 is an apocalyptic number.

7420386078 is an abundant number, since it is smaller than the sum of its proper divisors (12074909922).

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

7420386078 is a wasteful number, since it uses less digits than its factorization.

7420386078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676966 (or 676960 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 7420386078 is about 86141.6628467317. The cubic root of 7420386078 is about 1950.4829904187.

The spelling of 7420386078 in words is "seven billion, four hundred twenty million, three hundred eighty-six thousand, seventy-eight".