987880240 has 40 divisors (see below), whose sum is σ = 2352849408. Its totient is φ = 385512960.

The previous prime is 987880207. The next prime is 987880241. The reversal of 987880240 is 42088789.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (987880241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147312 + ... + 153871.

Almost surely, 2^987880240 is an apocalyptic number.

It is an amenable number.

987880240 is an abundant number, since it is smaller than the sum of its proper divisors (1364969168).

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

987880240 is a wasteful number, since it uses less digits than its factorization.

987880240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301237 (or 301231 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 987880240 is about 31430.5621966900. The cubic root of 987880240 is about 995.9436482583.

The spelling of 987880240 in words is "nine hundred eighty-seven million, eight hundred eighty thousand, two hundred forty".