1798505252 has 6 divisors (see below), whose sum is σ = 3147384198. Its totient is φ = 899252624.

The previous prime is 1798505197. The next prime is 1798505257. The reversal of 1798505252 is 2525058971.

It can be written as a sum of positive squares in only one way, i.e., 1589297956 + 209207296 = 39866^2 + 14464^2 .

It is a super-3 number, since 3×1798505252³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1798505257) by changing a digit.

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 as a sum of consecutive naturals, namely, 224813153 + ... + 224813160.

It is an arithmetic number, because the mean of its divisors is an integer number (524564033).

Almost surely, 2^1798505252 is an apocalyptic number.

It is an amenable number.

1798505252 is a deficient number, since it is larger than the sum of its proper divisors (1348878946).

1798505252 is a wasteful number, since it uses less digits than its factorization.

1798505252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449626317 (or 449626315 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 1798505252 is about 42408.7874384543. The cubic root of 1798505252 is about 1216.1035888567.

The spelling of 1798505252 in words is "one billion, seven hundred ninety-eight million, five hundred five thousand, two hundred fifty-two".