400653922482 has 210 divisors, whose sum is σ = 998446433565. Its totient is φ = 120524073120.

The previous prime is 400653922453. The next prime is 400653922489. The reversal of 400653922482 is 284229356004.

400653922482 is a `hidden beast` number, since 400 + 65 + 3 + 92 + 24 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 397569341961 + 3084580521 = 630531^2 + 55539^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=447579.

It is not an unprimeable number, because it can be changed into a prime (400653922489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 104 ways as a sum of consecutive naturals, for example, 2924481118 + ... + 2924481254.

Almost surely, 2^400653922482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400653922482

400653922482 is an abundant number, since it is smaller than the sum of its proper divisors (597792511083).

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

400653922482 is an frugal number, since it uses more digits than its factorization.

400653922482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 400653922482 in words is "four hundred billion, six hundred fifty-three million, nine hundred twenty-two thousand, four hundred eighty-two".