982377840 has 80 divisors (see below), whose sum is σ = 3177796608. Its totient is φ = 250576128.

The previous prime is 982377839. The next prime is 982377841. The reversal of 982377840 is 48773289.

It is an interprime number because it is at equal distance from previous prime (982377839) and next prime (982377841).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 982377840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982377841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83464 + ... + 94503.

Almost surely, 2^982377840 is an apocalyptic number.

It is an amenable number.

982377840 is an abundant number, since it is smaller than the sum of its proper divisors (2195418768).

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

982377840 is a wasteful number, since it uses less digits than its factorization.

982377840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178006 (or 178000 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 982377840 is about 31342.9073316436. The cubic root of 982377840 is about 994.0911003414.

The spelling of 982377840 in words is "nine hundred eighty-two million, three hundred seventy-seven thousand, eight hundred forty".