402443102 has 4 divisors (see below), whose sum is σ = 603664656. Its totient is φ = 201221550.

The previous prime is 402443089. The next prime is 402443131. The reversal of 402443102 is 201344204.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610774 + ... + 100610777.

It is an arithmetic number, because the mean of its divisors is an integer number (150916164).

Almost surely, 2^402443102 is an apocalyptic number.

402443102 is a deficient number, since it is larger than the sum of its proper divisors (201221554).

402443102 is a wasteful number, since it uses less digits than its factorization.

402443102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201221553.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402443102 is about 20060.9845720493. The cubic root of 402443102 is about 738.3033334676.

Adding to 402443102 its reverse (201344204), we get a palindrome (603787306).

The spelling of 402443102 in words is "four hundred two million, four hundred forty-three thousand, one hundred two".