402205402 has 8 divisors (see below), whose sum is σ = 617338656. Its totient is φ = 196425852.

The previous prime is 402205373. The next prime is 402205409. The reversal of 402205402 is 204502204.

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 402205402.

It is not an unprimeable number, because it can be changed into a prime (402205409) 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, 2338318 + ... + 2338489.

It is an arithmetic number, because the mean of its divisors is an integer number (77167332).

Almost surely, 2^402205402 is an apocalyptic number.

402205402 is a deficient number, since it is larger than the sum of its proper divisors (215133254).

402205402 is a wasteful number, since it uses less digits than its factorization.

402205402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676852.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 402205402 is about 20055.0592619419. The cubic root of 402205402 is about 738.1579470644.

Adding to 402205402 its reverse (204502204), we get a palindrome (606707606).

The spelling of 402205402 in words is "four hundred two million, two hundred five thousand, four hundred two".