402548 has 12 divisors (see below), whose sum is σ = 710052. Its totient is φ = 199680.

The previous prime is 402541. The next prime is 402551. The reversal of 402548 is 845204.

402548 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 252004 + 150544 = 502^2 + 388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402541) by changing a digit.

402548 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (59171).

2⁴⁰²⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

402548 is a deficient number, since it is larger than the sum of its proper divisors (307504).

402548 is a wasteful number, since it uses less digits than its factorization.

402548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 402548 is about 634.4667051942. The cubic root of 402548 is about 73.8367474887.

The spelling of 402548 in words is "four hundred two thousand, five hundred forty-eight".