405125202 has 16 divisors (see below), whose sum is σ = 810538272. Its totient is φ = 134993760.

The previous prime is 405125191. The next prime is 405125209. The reversal of 405125202 is 202521504.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (405125209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9177 + ... + 29907.

It is an arithmetic number, because the mean of its divisors is an integer number (50658642).

Almost surely, 2^405125202 is an apocalyptic number.

405125202 is an abundant number, since it is smaller than the sum of its proper divisors (405413070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405125202 is a wasteful number, since it uses less digits than its factorization.

405125202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23993.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 405125202 is about 20127.7222258258. The cubic root of 405125202 is about 739.9398551069.

Adding to 405125202 its reverse (202521504), we get a palindrome (607646706).

The spelling of 405125202 in words is "four hundred five million, one hundred twenty-five thousand, two hundred two".