402822510489 has 27 divisors (see below), whose sum is σ = 676873825173. Its totient is φ = 230176675512.

The previous prime is 402822510469. The next prime is 402822510499. The reversal of 402822510489 is 984015228204.

The square root of 402822510489 is 634683.

It is a perfect power (a square), and thus also a powerful number.

402822510489 is a `hidden beast` number, since 40 + 2 + 82 + 2 + 51 + 0 + 489 = 666.

It is not a de Polignac number, because 402822510489 - 2¹⁷ = 402822379417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402822510469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13313232 + ... + 13343454.

Almost surely, 2^402822510489 is an apocalyptic number.

402822510489 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

402822510489 is the 634683-rd square number.

402822510489 is the 317342-nd centered octagonal number.

It is an amenable number.

402822510489 is a deficient number, since it is larger than the sum of its proper divisors (274051314684).

402822510489 is an frugal number, since it uses more digits than its factorization.

402822510489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60466 (or 30233 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 402822510489 in words is "four hundred two billion, eight hundred twenty-two million, five hundred ten thousand, four hundred eighty-nine".