402101 has 16 divisors (see below), whose sum is σ = 506880. Its totient is φ = 311040.

The previous prime is 402091. The next prime is 402107. The reversal of 402101 is 101204.

It is a cyclic number.

It is not a de Polignac number, because 402101 - 2⁶ = 402037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3635 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2⁴⁰²¹⁰¹ is an apocalyptic number.

It is an amenable number.

402101 is a deficient number, since it is larger than the sum of its proper divisors (104779).

402101 is a wasteful number, since it uses less digits than its factorization.

402101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 402101 is about 634.1143430013. The cubic root of 402101 is about 73.8094072707.

Adding to 402101 its reverse (101204), we get a palindrome (503305).

The spelling of 402101 in words is "four hundred two thousand, one hundred one", and thus it is an iban number.