1685470248 has 384 divisors, whose sum is σ = 6146150400. Its totient is φ = 422755200.

The previous prime is 1685470231. The next prime is 1685470277. The reversal of 1685470248 is 8420745861.

1685470248 is a `hidden beast` number, since 1 + 68 + 547 + 0 + 2 + 48 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3608911 + ... + 3609377.

It is an arithmetic number, because the mean of its divisors is an integer number (16005600).

Almost surely, 2^1685470248 is an apocalyptic number.

1685470248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1685470248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3073075200).

1685470248 is an abundant number, since it is smaller than the sum of its proper divisors (4460680152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1685470248 is a wasteful number, since it uses less digits than its factorization.

1685470248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 1685470248 is about 41054.4790248275. The cubic root of 1685470248 is about 1190.0732596190.

The spelling of 1685470248 in words is "one billion, six hundred eighty-five million, four hundred seventy thousand, two hundred forty-eight".