402729846 has 8 divisors (see below), whose sum is σ = 805459704. Its totient is φ = 134243280.

The previous prime is 402729841. The next prime is 402729857. The reversal of 402729846 is 648927204.

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

402729846 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402729798 and 402729807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402729841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33560815 + ... + 33560826.

It is an arithmetic number, because the mean of its divisors is an integer number (100682463).

Almost surely, 2^402729846 is an apocalyptic number.

402729846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402729846 is a wasteful number, since it uses less digits than its factorization.

402729846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67121646.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 402729846 is about 20068.1301072123. The cubic root of 402729846 is about 738.4786408916.

The spelling of 402729846 in words is "four hundred two million, seven hundred twenty-nine thousand, eight hundred forty-six".