4200420850 has 24 divisors (see below), whose sum is σ = 7843206708. Its totient is φ = 1673625600.

The previous prime is 4200420827. The next prime is 4200420859. The reversal of 4200420850 is 580240024.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3515185521 + 685235329 = 59289^2 + 26177^2 .

It is a super-2 number, since 2×4200420850² = 35287070634229445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (4200420859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150591 + ... + 176290.

Almost surely, 2^4200420850 is an apocalyptic number.

4200420850 is a deficient number, since it is larger than the sum of its proper divisors (3642785858).

4200420850 is a wasteful number, since it uses less digits than its factorization.

4200420850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327150 (or 327145 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4200420850 is about 64810.6538309868. The cubic root of 4200420850 is about 1613.4825340220.

Adding to 4200420850 its reverse (580240024), we get a palindrome (4780660874).

The spelling of 4200420850 in words is "four billion, two hundred million, four hundred twenty thousand, eight hundred fifty".