987026940 has 72 divisors (see below), whose sum is σ = 3012439248. Its totient is φ = 261584640.

The previous prime is 987026923. The next prime is 987026959. The reversal of 987026940 is 49620789.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12520 + ... + 46160.

It is an arithmetic number, because the mean of its divisors is an integer number (41839434).

Almost surely, 2^987026940 is an apocalyptic number.

987026940 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987026940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506219624).

987026940 is an abundant number, since it is smaller than the sum of its proper divisors (2025412308).

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

987026940 is a wasteful number, since it uses less digits than its factorization.

987026940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33819 (or 33814 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 987026940 is about 31416.9848967083. The cubic root of 987026940 is about 995.6568106822.

The spelling of 987026940 in words is "nine hundred eighty-seven million, twenty-six thousand, nine hundred forty".