2140942578 has 8 divisors (see below), whose sum is σ = 4281885168. Its totient is φ = 713647524.

The previous prime is 2140942537. The next prime is 2140942627. The reversal of 2140942578 is 8752490412.

It is a sphenic number, since it is the product of 3 distinct primes.

2140942578 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178411876 + ... + 178411887.

It is an arithmetic number, because the mean of its divisors is an integer number (535235646).

Almost surely, 2^2140942578 is an apocalyptic number.

2140942578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2140942578 is a wasteful number, since it uses less digits than its factorization.

2140942578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356823768.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 2140942578 is about 46270.3207034488. The cubic root of 2140942578 is about 1288.8479143627.

The spelling of 2140942578 in words is "two billion, one hundred forty million, nine hundred forty-two thousand, five hundred seventy-eight".