7042855540 has 48 divisors (see below), whose sum is σ = 17897144832. Its totient is φ = 2272651776.

The previous prime is 7042855537. The next prime is 7042855541. The reversal of 7042855540 is 455582407.

It is a junction number, because it is equal to n+sod(n) for n = 7042855493 and 7042855502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042855541) 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, 1477212 + ... + 1481971.

It is an arithmetic number, because the mean of its divisors is an integer number (372857184).

Almost surely, 2^7042855540 is an apocalyptic number.

7042855540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7042855540 is an abundant number, since it is smaller than the sum of its proper divisors (10854289292).

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

7042855540 is a wasteful number, since it uses less digits than its factorization.

7042855540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959216 (or 2959214 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 40.

The square root of 7042855540 is about 83921.7226944252. The cubic root of 7042855540 is about 1916.8270383096.

The spelling of 7042855540 in words is "seven billion, forty-two million, eight hundred fifty-five thousand, five hundred forty".