402242102 has 4 divisors (see below), whose sum is σ = 603363156. Its totient is φ = 201121050.

The previous prime is 402242077. The next prime is 402242107. The reversal of 402242102 is 201242204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402242107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560524 + ... + 100560527.

It is an arithmetic number, because the mean of its divisors is an integer number (150840789).

Almost surely, 2^402242102 is an apocalyptic number.

402242102 is a deficient number, since it is larger than the sum of its proper divisors (201121054).

402242102 is a wasteful number, since it uses less digits than its factorization.

402242102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201121053.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 402242102 is about 20055.9742221613. The cubic root of 402242102 is about 738.1803979254.

Adding to 402242102 its reverse (201242204), we get a palindrome (603484306).

The spelling of 402242102 in words is "four hundred two million, two hundred forty-two thousand, one hundred two".