1698489052 has 24 divisors (see below), whose sum is σ = 3311380800. Its totient is φ = 756885696.

The previous prime is 1698489049. The next prime is 1698489053. The reversal of 1698489052 is 2509848961.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698489053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561652 + ... + 564667.

It is an arithmetic number, because the mean of its divisors is an integer number (137974200).

Almost surely, 2^1698489052 is an apocalyptic number.

It is an amenable number.

1698489052 is a deficient number, since it is larger than the sum of its proper divisors (1612891748).

1698489052 is a wasteful number, since it uses less digits than its factorization.

1698489052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126365 (or 1126363 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 1698489052 is about 41212.7292471634. The cubic root of 1698489052 is about 1193.1295006417.

The spelling of 1698489052 in words is "one billion, six hundred ninety-eight million, four hundred eighty-nine thousand, fifty-two".