402849842 has 8 divisors (see below), whose sum is σ = 609033216. Its totient is φ = 199838772.

The previous prime is 402849841. The next prime is 402849869. The reversal of 402849842 is 248948204.

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

It is a self number, because there is not a number n which added to its sum of digits gives 402849842.

It is not an unprimeable number, because it can be changed into a prime (402849841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792758 + ... + 793265.

It is an arithmetic number, because the mean of its divisors is an integer number (76129152).

Almost surely, 2^402849842 is an apocalyptic number.

402849842 is a deficient number, since it is larger than the sum of its proper divisors (206183374).

402849842 is a wasteful number, since it uses less digits than its factorization.

402849842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586152.

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 402849842 is about 20071.1196000622. The cubic root of 402849842 is about 738.5519784604.

The spelling of 402849842 in words is "four hundred two million, eight hundred forty-nine thousand, eight hundred forty-two".