1984750530 has 32 divisors (see below), whose sum is σ = 5443887744. Its totient is φ = 453657216.

The previous prime is 1984750529. The next prime is 1984750549. The reversal of 1984750530 is 350574891.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4725387 + ... + 4725806.

It is an arithmetic number, because the mean of its divisors is an integer number (170121492).

Almost surely, 2^1984750530 is an apocalyptic number.

1984750530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1984750530 is an abundant number, since it is smaller than the sum of its proper divisors (3459137214).

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

1984750530 is a wasteful number, since it uses less digits than its factorization.

1984750530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9451210.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1984750530 is about 44550.5390539778. The cubic root of 1984750530 is about 1256.7106885899.

The spelling of 1984750530 in words is "one billion, nine hundred eighty-four million, seven hundred fifty thousand, five hundred thirty".