976285440 has 576 divisors, whose sum is σ = 3894065280. Its totient is φ = 230031360.

The previous prime is 976285391. The next prime is 976285447. The reversal of 976285440 is 44582679.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (576).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (976285447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18420454 + ... + 18420506.

It is an arithmetic number, because the mean of its divisors is an integer number (6760530).

Almost surely, 2^976285440 is an apocalyptic number.

976285440 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 976285440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947032640).

976285440 is an abundant number, since it is smaller than the sum of its proper divisors (2917779840).

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

976285440 is a wasteful number, since it uses less digits than its factorization.

976285440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 976285440 is about 31245.5667255372. The cubic root of 976285440 is about 992.0318234675.

The spelling of 976285440 in words is "nine hundred seventy-six million, two hundred eighty-five thousand, four hundred forty".