16265140 has 48 divisors (see below), whose sum is σ = 37537920. Its totient is φ = 5892480.

The previous prime is 16265131. The next prime is 16265147. The reversal of 16265140 is 4156261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16265147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7810 + ... + 9670.

It is an arithmetic number, because the mean of its divisors is an integer number (782040).

Almost surely, 2^16265140 is an apocalyptic number.

16265140 is a gapful number since it is divisible by the number (10) 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 16265140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18768960).

16265140 is an abundant number, since it is smaller than the sum of its proper divisors (21272780).

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

16265140 is a wasteful number, since it uses less digits than its factorization.

16265140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 16265140 is about 4033.0063228316. The cubic root of 16265140 is about 253.3684892731.

The spelling of 16265140 in words is "sixteen million, two hundred sixty-five thousand, one hundred forty".