402501 has 8 divisors (see below), whose sum is σ = 585504. Its totient is φ = 243920.

The previous prime is 402487. The next prime is 402503. The reversal of 402501 is 105204.

402501 = 8² + 9² + ... + 106².

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 402501 - 2¹⁰ = 401477 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402501.

It is not an unprimeable number, because it can be changed into a prime (402503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6066 + ... + 6131.

It is an arithmetic number, because the mean of its divisors is an integer number (73188).

2⁴⁰²⁵⁰¹ is an apocalyptic number.

It is an amenable number.

402501 is a deficient number, since it is larger than the sum of its proper divisors (183003).

402501 is a wasteful number, since it uses less digits than its factorization.

402501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 402501 is about 634.4296651324. The cubic root of 402501 is about 73.8338737426.

Adding to 402501 its reverse (105204), we get a palindrome (507705).

It can be divided in two parts, 402 and 501, that added together give a triangular number (903 = T₄₂).

The spelling of 402501 in words is "four hundred two thousand, five hundred one".