1798148550 has 96 divisors (see below), whose sum is σ = 4903686144. Its totient is φ = 432432000.

The previous prime is 1798148549. The next prime is 1798148557. The reversal of 1798148550 is 558418971.

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 1798148550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798148557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205260 + ... + 213840.

It is an arithmetic number, because the mean of its divisors is an integer number (51080064).

Almost surely, 2^1798148550 is an apocalyptic number.

1798148550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798148550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451843072).

1798148550 is an abundant number, since it is smaller than the sum of its proper divisors (3105537594).

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

1798148550 is a wasteful number, since it uses less digits than its factorization.

1798148550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8729 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 48.

The square root of 1798148550 is about 42404.5817099992. The cubic root of 1798148550 is about 1216.0231859289.

The spelling of 1798148550 in words is "one billion, seven hundred ninety-eight million, one hundred forty-eight thousand, five hundred fifty".