402041 has 4 divisors (see below), whose sum is σ = 403572. Its totient is φ = 400512.

The previous prime is 402037. The next prime is 402043. The reversal of 402041 is 140204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 246016 = 395^2 + 496^2 .

It is a cyclic number.

It is not a de Polignac number, because 402041 - 2² = 402037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402043) 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, 260 + ... + 933.

It is an arithmetic number, because the mean of its divisors is an integer number (100893).

2⁴⁰²⁰⁴¹ is an apocalyptic number.

It is an amenable number.

402041 is a deficient number, since it is larger than the sum of its proper divisors (1531).

402041 is a wasteful number, since it uses less digits than its factorization.

402041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 402041 is about 634.0670311568. The cubic root of 402041 is about 73.8057359006.

Adding to 402041 its reverse (140204), we get a palindrome (542245).

The spelling of 402041 in words is "four hundred two thousand, forty-one", and thus it is an iban number.