987373440 has 384 divisors, whose sum is σ = 3694766400. Its totient is φ = 242221056.

The previous prime is 987373427. The next prime is 987373483. The reversal of 987373440 is 44373789.

It is a happy number.

987373440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (384).

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 polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3841792 + ... + 3842048.

Almost surely, 2^987373440 is an apocalyptic number.

987373440 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 987373440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847383200).

987373440 is an abundant number, since it is smaller than the sum of its proper divisors (2707392960).

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

987373440 is a wasteful number, since it uses less digits than its factorization.

987373440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 987373440 is about 31422.4989458191. The cubic root of 987373440 is about 995.7733069020.

The spelling of 987373440 in words is "nine hundred eighty-seven million, three hundred seventy-three thousand, four hundred forty".