41809402 has 4 divisors (see below), whose sum is σ = 62714106. Its totient is φ = 20904700.

The previous prime is 41809399. The next prime is 41809433. The reversal of 41809402 is 20490814.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39929761 + 1879641 = 6319^2 + 1371^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10452349 + ... + 10452352.

Almost surely, 2^41809402 is an apocalyptic number.

41809402 is a deficient number, since it is larger than the sum of its proper divisors (20904704).

41809402 is a wasteful number, since it uses less digits than its factorization.

41809402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20904703.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 41809402 is about 6466.0190225517. The cubic root of 41809402 is about 347.0760546086.

The spelling of 41809402 in words is "forty-one million, eight hundred nine thousand, four hundred two".