16285140 has 36 divisors (see below), whose sum is σ = 49398804. Its totient is φ = 4342656.

The previous prime is 16285117. The next prime is 16285177. The reversal of 16285140 is 4158261.

It can be written as a sum of positive squares in 2 ways, for example, as 9659664 + 6625476 = 3108^2 + 2574^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 12.

It is a congruent number.

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, 45057 + ... + 45416.

It is an arithmetic number, because the mean of its divisors is an integer number (1372189).

Almost surely, 2^16285140 is an apocalyptic number.

16285140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16285140 is an abundant number, since it is smaller than the sum of its proper divisors (33113664).

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

16285140 is a wasteful number, since it uses less digits than its factorization.

16285140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90488 (or 90483 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 16285140 is about 4035.4851009513. The cubic root of 16285140 is about 253.4722960283.

It can be divided in two parts, 16 and 285140, that added together give a square (285156 = 534²).

The spelling of 16285140 in words is "sixteen million, two hundred eighty-five thousand, one hundred forty".