405142050 has 48 divisors (see below), whose sum is σ = 1006042752. Its totient is φ = 107899200.

The previous prime is 405142039. The next prime is 405142051. The reversal of 405142050 is 50241504.

It is not an unprimeable number, because it can be changed into a prime (405142051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176007 + ... + 178293.

It is an arithmetic number, because the mean of its divisors is an integer number (20959224).

Almost surely, 2^405142050 is an apocalyptic number.

405142050 is an abundant number, since it is smaller than the sum of its proper divisors (600900702).

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

405142050 is a wasteful number, since it uses less digits than its factorization.

405142050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483 (or 3478 counting only the distinct ones).

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

The square root of 405142050 is about 20128.1407487130. The cubic root of 405142050 is about 739.9501122931.

Adding to 405142050 its reverse (50241504), we get a palindrome (455383554).

The spelling of 405142050 in words is "four hundred five million, one hundred forty-two thousand, fifty".