402682028 has 24 divisors (see below), whose sum is σ = 805900032. Its totient is φ = 172463184.

The previous prime is 402682019. The next prime is 402682069. The reversal of 402682028 is 820286204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402681985 and 402682003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48425 + ... + 56127.

It is an arithmetic number, because the mean of its divisors is an integer number (33579168).

Almost surely, 2^402682028 is an apocalyptic number.

It is an amenable number.

402682028 is an abundant number, since it is smaller than the sum of its proper divisors (403218004).

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

402682028 is a wasteful number, since it uses less digits than its factorization.

402682028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9581 (or 9579 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 402682028 is about 20066.9386803269. The cubic root of 402682028 is about 738.4494120594.

The spelling of 402682028 in words is "four hundred two million, six hundred eighty-two thousand, twenty-eight".