402434431029 has 10 divisors (see below), whose sum is σ = 601167483510. Its totient is φ = 268289620632.

The previous prime is 402434430997. The next prime is 402434431031. The reversal of 402434431029 is 920134434204.

402434431029 is a `hidden beast` number, since 40 + 243 + 44 + 310 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 304075044900 + 98359386129 = 551430^2 + 313623^2 .

It is not a de Polignac number, because 402434431029 - 2⁵ = 402434430997 is a prime.

It is a super-5 number, since 5×402434431029⁵ (a number of 59 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402434430984 and 402434431002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402434431079) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2484163074 + ... + 2484163235.

It is an arithmetic number, because the mean of its divisors is an integer number (60116748351).

Almost surely, 2^402434431029 is an apocalyptic number.

It is an amenable number.

402434431029 is a deficient number, since it is larger than the sum of its proper divisors (198733052481).

402434431029 is an equidigital number, since it uses as much as digits as its factorization.

402434431029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968326321 (or 4968326312 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 402434431029 in words is "four hundred two billion, four hundred thirty-four million, four hundred thirty-one thousand, twenty-nine".