1698356242 has 24 divisors (see below), whose sum is σ = 2838570588. Its totient is φ = 761397120.

The previous prime is 1698356239. The next prime is 1698356269. The reversal of 1698356242 is 2426538961.

It can be written as a sum of positive squares in 2 ways, for example, as 1611139321 + 87216921 = 40139^2 + 9339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1698356192 and 1698356201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30403 + ... + 65734.

Almost surely, 2^1698356242 is an apocalyptic number.

1698356242 is a deficient number, since it is larger than the sum of its proper divisors (1140214346).

1698356242 is a wasteful number, since it uses less digits than its factorization.

1698356242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96234 (or 96223 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 1698356242 is about 41211.1179416429. The cubic root of 1698356242 is about 1193.0984016955.

The spelling of 1698356242 in words is "one billion, six hundred ninety-eight million, three hundred fifty-six thousand, two hundred forty-two".