402488 has 8 divisors (see below), whose sum is σ = 754680. Its totient is φ = 201240.

The previous prime is 402487. The next prime is 402503. The reversal of 402488 is 884204.

402488 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a tau number, because it is divible by the number of its divisors (8).

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 402488.

It is not an unprimeable number, because it can be changed into a prime (402487) 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 as a sum of consecutive naturals, namely, 25148 + ... + 25163.

It is an arithmetic number, because the mean of its divisors is an integer number (94335).

2⁴⁰²⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

402488 is a deficient number, since it is larger than the sum of its proper divisors (352192).

402488 is a wasteful number, since it uses less digits than its factorization.

402488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50317 (or 50313 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 402488 is about 634.4194196271. The cubic root of 402488 is about 73.8330788372.

The spelling of 402488 in words is "four hundred two thousand, four hundred eighty-eight".