2978684142 has 32 divisors (see below), whose sum is σ = 6816014592. Its totient is φ = 850103424.

The previous prime is 2978684141. The next prime is 2978684143. The reversal of 2978684142 is 2414868792.

It is an interprime number because it is at equal distance from previous prime (2978684141) and next prime (2978684143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978684141) 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, 1003 + ... + 77190.

It is an arithmetic number, because the mean of its divisors is an integer number (213000456).

Almost surely, 2^2978684142 is an apocalyptic number.

2978684142 is an abundant number, since it is smaller than the sum of its proper divisors (3837330450).

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

2978684142 is a wasteful number, since it uses less digits than its factorization.

2978684142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79112.

The product of its digits is 1548288, while the sum is 51.

The square root of 2978684142 is about 54577.3225983100. The cubic root of 2978684142 is about 1438.8255827602.

The spelling of 2978684142 in words is "two billion, nine hundred seventy-eight million, six hundred eighty-four thousand, one hundred forty-two".