1685048472 has 24 divisors (see below), whose sum is σ = 4563673140. Its totient is φ = 561682800.

The previous prime is 1685048441. The next prime is 1685048479. The reversal of 1685048472 is 2748405861.

1685048472 is a `hidden beast` number, since 1 + 68 + 504 + 84 + 7 + 2 = 666.

1685048472 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685048479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11701654 + ... + 11701797.

Almost surely, 2^1685048472 is an apocalyptic number.

1685048472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1685048472 is an abundant number, since it is smaller than the sum of its proper divisors (2878624668).

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

1685048472 is a wasteful number, since it uses less digits than its factorization.

1685048472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23403463 (or 23403456 counting only the distinct ones).

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

The square root of 1685048472 is about 41049.3419192074. The cubic root of 1685048472 is about 1189.9739824361.

The spelling of 1685048472 in words is "one billion, six hundred eighty-five million, forty-eight thousand, four hundred seventy-two".