402230028845 has 8 divisors (see below), whose sum is σ = 482722273176. Its totient is φ = 321753197376.

The previous prime is 402230028799. The next prime is 402230028877. The reversal of 402230028845 is 548820032204.

It can be written as a sum of positive squares in 4 ways, for example, as 252676123561 + 149553905284 = 502669^2 + 386722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402230028845 - 2³⁸ = 127352121901 is a prime.

It is a super-2 number, since 2×402230028845² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402230028799 and 402230028808.

It is a congruent number.

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, 3795722 + ... + 3900251.

It is an arithmetic number, because the mean of its divisors is an integer number (60340284147).

Almost surely, 2^402230028845 is an apocalyptic number.

It is an amenable number.

402230028845 is a deficient number, since it is larger than the sum of its proper divisors (80492244331).

402230028845 is a wasteful number, since it uses less digits than its factorization.

402230028845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706431.

The product of its (nonzero) digits is 122880, while the sum is 38.

The spelling of 402230028845 in words is "four hundred two billion, two hundred thirty million, twenty-eight thousand, eight hundred forty-five".