16411540 has 12 divisors (see below), whose sum is σ = 34464276. Its totient is φ = 6564608.

The previous prime is 16411531. The next prime is 16411541. The reversal of 16411540 is 4511461.

It can be written as a sum of positive squares in 2 ways, for example, as 7387524 + 9024016 = 2718^2 + 3004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16411541) 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, 410269 + ... + 410308.

It is an arithmetic number, because the mean of its divisors is an integer number (2872023).

Almost surely, 2^16411540 is an apocalyptic number.

16411540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16411540 is an abundant number, since it is smaller than the sum of its proper divisors (18052736).

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

16411540 is a wasteful number, since it uses less digits than its factorization.

16411540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820586 (or 820584 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 16411540 is about 4051.1158956515. The cubic root of 16411540 is about 254.1263966777.

The spelling of 16411540 in words is "sixteen million, four hundred eleven thousand, five hundred forty".