1984752840 has 96 divisors (see below), whose sum is σ = 6926402880. Its totient is φ = 453656448.

The previous prime is 1984752827. The next prime is 1984752841. The reversal of 1984752840 is 482574891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1984752840.

It is not an unprimeable number, because it can be changed into a prime (1984752841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162892 + ... + 174651.

It is an arithmetic number, because the mean of its divisors is an integer number (72150030).

Almost surely, 2^1984752840 is an apocalyptic number.

1984752840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1984752840 is an abundant number, since it is smaller than the sum of its proper divisors (4941650040).

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

1984752840 is a wasteful number, since it uses less digits than its factorization.

1984752840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337571 (or 337560 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 1984752840 is about 44550.5649795825. The cubic root of 1984752840 is about 1256.7111761408.

The spelling of 1984752840 in words is "one billion, nine hundred eighty-four million, seven hundred fifty-two thousand, eight hundred forty".