1989350496 has 192 divisors, whose sum is σ = 6701506560. Its totient is φ = 562360320.

The previous prime is 1989350453. The next prime is 1989350501. The reversal of 1989350496 is 6940539891.

1989350496 is a `hidden beast` number, since 19 + 8 + 93 + 50 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 584961 + ... + 588351.

It is an arithmetic number, because the mean of its divisors is an integer number (34903680).

Almost surely, 2^1989350496 is an apocalyptic number.

1989350496 is a gapful number since it is divisible by the number (16) 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 1989350496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3350753280).

1989350496 is an abundant number, since it is smaller than the sum of its proper divisors (4712156064).

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

1989350496 is a wasteful number, since it uses less digits than its factorization.

1989350496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514 (or 3500 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 1989350496 is about 44602.1355542535. The cubic root of 1989350496 is about 1257.6808132323.

The spelling of 1989350496 in words is "one billion, nine hundred eighty-nine million, three hundred fifty thousand, four hundred ninety-six".