1698340772 has 24 divisors (see below), whose sum is σ = 3048580920. Its totient is φ = 827573760.

The previous prime is 1698340759. The next prime is 1698340807. The reversal of 1698340772 is 2770438961.

It can be written as a sum of positive squares in 4 ways, for example, as 128913316 + 1569427456 = 11354^2 + 39616^2 .

It is a super-2 number, since 2×1698340772² = 5768722755675111968, which contains 22 as substring.

It is an unprimeable number.

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, 5333 + ... + 58524.

It is an arithmetic number, because the mean of its divisors is an integer number (127024205).

Almost surely, 2^1698340772 is an apocalyptic number.

It is an amenable number.

1698340772 is a deficient number, since it is larger than the sum of its proper divisors (1350240148).

1698340772 is a wasteful number, since it uses less digits than its factorization.

1698340772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64031 (or 64029 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1698340772 is about 41210.9302491463. The cubic root of 1698340772 is about 1193.0947791166.

The spelling of 1698340772 in words is "one billion, six hundred ninety-eight million, three hundred forty thousand, seven hundred seventy-two".