41809428 has 36 divisors (see below), whose sum is σ = 106086708. Its totient is φ = 13883520.

The previous prime is 41809399. The next prime is 41809433. The reversal of 41809428 is 82490814.

It can be written as a sum of positive squares in 2 ways, for example, as 29615364 + 12194064 = 5442^2 + 3492^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 41809392 and 41809401.

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, 8050 + ... + 12182.

It is an arithmetic number, because the mean of its divisors is an integer number (2946853).

Almost surely, 2^41809428 is an apocalyptic number.

It is an amenable number.

41809428 is an abundant number, since it is smaller than the sum of its proper divisors (64277280).

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

41809428 is a wasteful number, since it uses less digits than its factorization.

41809428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4419 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 41809428 is about 6466.0210330620. The cubic root of 41809428 is about 347.0761265539.

The spelling of 41809428 in words is "forty-one million, eight hundred nine thousand, four hundred twenty-eight".