402824042 has 8 divisors (see below), whose sum is σ = 605100132. Its totient is φ = 201124000.

The previous prime is 402824041. The next prime is 402824117. The reversal of 402824042 is 240428204.

It can be written as a sum of positive squares in 2 ways, for example, as 279591841 + 123232201 = 16721^2 + 11101^2 .

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

It is not an unprimeable number, because it can be changed into a prime (402824041) 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, 142259 + ... + 145062.

Almost surely, 2^402824042 is an apocalyptic number.

402824042 is a deficient number, since it is larger than the sum of its proper divisors (202276090).

402824042 is a wasteful number, since it uses less digits than its factorization.

402824042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288024.

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 402824042 is about 20070.4768752514. The cubic root of 402824042 is about 738.5362115867.

The spelling of 402824042 in words is "four hundred two million, eight hundred twenty-four thousand, forty-two".