1200020424 has 16 divisors (see below), whose sum is σ = 3000051120. Its totient is φ = 400006800.

The previous prime is 1200020413. The next prime is 1200020443. The reversal of 1200020424 is 4240200021.

1200020424 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25000402 + ... + 25000449.

It is an arithmetic number, because the mean of its divisors is an integer number (187503195).

Almost surely, 2^1200020424 is an apocalyptic number.

It is an amenable number.

1200020424 is an abundant number, since it is smaller than the sum of its proper divisors (1800030696).

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

1200020424 is a wasteful number, since it uses less digits than its factorization.

1200020424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50000860 (or 50000856 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1200020424 is about 34641.3109451707. The cubic root of 1200020424 is about 1062.6645979647.

Adding to 1200020424 its reverse (4240200021), we get a palindrome (5440220445).

The spelling of 1200020424 in words is "one billion, two hundred million, twenty thousand, four hundred twenty-four".