2087880642 has 12 divisors (see below), whose sum is σ = 4523741430. Its totient is φ = 695960208.

The previous prime is 2087880631. The next prime is 2087880643. The reversal of 2087880642 is 2460887802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2085657561 + 2223081 = 45669^2 + 1491^2 .

It is not an unprimeable number, because it can be changed into a prime (2087880643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57996667 + ... + 57996702.

Almost surely, 2^2087880642 is an apocalyptic number.

2087880642 is an abundant number, since it is smaller than the sum of its proper divisors (2435860788).

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

2087880642 is a wasteful number, since it uses less digits than its factorization.

2087880642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115993377 (or 115993374 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 2087880642 is about 45693.3325770839. The cubic root of 2087880642 is about 1278.1109508617.

The spelling of 2087880642 in words is "two billion, eighty-seven million, eight hundred eighty thousand, six hundred forty-two".