1698485378 has 8 divisors (see below), whose sum is σ = 2548649280. Its totient is φ = 848935620.

The previous prime is 1698485377. The next prime is 1698485401. The reversal of 1698485378 is 8735848961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1698485377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146558 + ... + 157721.

It is an arithmetic number, because the mean of its divisors is an integer number (318581160).

Almost surely, 2^1698485378 is an apocalyptic number.

1698485378 is a deficient number, since it is larger than the sum of its proper divisors (850163902).

1698485378 is a wasteful number, since it uses less digits than its factorization.

1698485378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307072.

The product of its digits is 11612160, while the sum is 59.

The square root of 1698485378 is about 41212.6846735322. The cubic root of 1698485378 is about 1193.1286403554.

The spelling of 1698485378 in words is "one billion, six hundred ninety-eight million, four hundred eighty-five thousand, three hundred seventy-eight".