402828212 has 12 divisors (see below), whose sum is σ = 729258180. Its totient is φ = 194468736.

The previous prime is 402828193. The next prime is 402828269. The reversal of 402828212 is 212828204.

It can be written as a sum of positive squares in 2 ways, for example, as 291863056 + 110965156 = 17084^2 + 10534^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736213 + ... + 1736444.

It is an arithmetic number, because the mean of its divisors is an integer number (60771515).

Almost surely, 2^402828212 is an apocalyptic number.

It is an amenable number.

402828212 is a deficient number, since it is larger than the sum of its proper divisors (326429968).

402828212 is a wasteful number, since it uses less digits than its factorization.

402828212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472690 (or 3472688 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 402828212 is about 20070.5807589118. The cubic root of 402828212 is about 738.5387599991.

The spelling of 402828212 in words is "four hundred two million, eight hundred twenty-eight thousand, two hundred twelve".