402512 has 20 divisors (see below), whose sum is σ = 851136. Its totient is φ = 182880.

The previous prime is 402511. The next prime is 402517. The reversal of 402512 is 215204.

Added to its reverse (215204) it gives a triangular number (617716 = T₁₁₁₁).

402512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 402512.

It is not an unprimeable number, because it can be changed into a prime (402511) 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, 968 + ... + 1319.

2⁴⁰²⁵¹² is an apocalyptic number.

It is an amenable number.

402512 is an abundant number, since it is smaller than the sum of its proper divisors (448624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402512 is a wasteful number, since it uses less digits than its factorization.

402512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2300 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 402512 is about 634.4383342769. The cubic root of 402512 is about 73.8345463415.

Adding to 402512 its reverse (215204), we get a palindrome (617716).

It can be divided in two parts, 40 and 2512, that added together give a palindrome (2552).

The spelling of 402512 in words is "four hundred two thousand, five hundred twelve".