16405741 has 8 divisors (see below), whose sum is σ = 17931744. Its totient is φ = 14885520.

The previous prime is 16405729. The next prime is 16405751. The reversal of 16405741 is 14750461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16405741 - 2⁵ = 16405709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16405751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6346 + ... + 8548.

It is an arithmetic number, because the mean of its divisors is an integer number (2241468).

Almost surely, 2^16405741 is an apocalyptic number.

16405741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16405741 is a deficient number, since it is larger than the sum of its proper divisors (1526003).

16405741 is a wasteful number, since it uses less digits than its factorization.

16405741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 16405741 is about 4050.4001036935. The cubic root of 16405741 is about 254.0964613886.

It can be divided in two parts, 1640 and 5741, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 16405741 in words is "sixteen million, four hundred five thousand, seven hundred forty-one".