402000282 has 24 divisors (see below), whose sum is σ = 871371540. Its totient is φ = 133943040.

The previous prime is 402000251. The next prime is 402000293. The reversal of 402000282 is 282000204.

It can be written as a sum of positive squares in 2 ways, for example, as 392396481 + 9603801 = 19809^2 + 3099^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73482 + ... + 78762.

Almost surely, 2^402000282 is an apocalyptic number.

402000282 is an abundant number, since it is smaller than the sum of its proper divisors (469371258).

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

402000282 is a wasteful number, since it uses less digits than its factorization.

402000282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518 (or 9515 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 402000282 is about 20049.9446882030. The cubic root of 402000282 is about 738.0324417845.

Adding to 402000282 its reverse (282000204), we get a palindrome (684000486).

The spelling of 402000282 in words is "four hundred two million, two hundred eighty-two", and thus it is an aban number.