402442412 has 6 divisors (see below), whose sum is σ = 704274228. Its totient is φ = 201221204.

The previous prime is 402442393. The next prime is 402442421. The reversal of 402442412 is 214244204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305298 + ... + 50305305.

It is an arithmetic number, because the mean of its divisors is an integer number (117379038).

Almost surely, 2^402442412 is an apocalyptic number.

It is an amenable number.

402442412 is a deficient number, since it is larger than the sum of its proper divisors (301831816).

402442412 is a wasteful number, since it uses less digits than its factorization.

402442412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100610607 (or 100610605 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 402442412 is about 20060.9673744812. The cubic root of 402442412 is about 738.3029115200.

Adding to 402442412 its reverse (214244204), we get a palindrome (616686616).

The spelling of 402442412 in words is "four hundred two million, four hundred forty-two thousand, four hundred twelve".