1042200020 has 12 divisors (see below), whose sum is σ = 2188620084. Its totient is φ = 416880000.

The previous prime is 1042200007. The next prime is 1042200023. The reversal of 1042200020 is 200022401.

It can be written as a sum of positive squares in 2 ways, for example, as 500148496 + 542051524 = 22364^2 + 23282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1042199974 and 1042200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042200023) 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, 26054981 + ... + 26055020.

It is an arithmetic number, because the mean of its divisors is an integer number (182385007).

Almost surely, 2^1042200020 is an apocalyptic number.

1042200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042200020 is an abundant number, since it is smaller than the sum of its proper divisors (1146420064).

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

1042200020 is a wasteful number, since it uses less digits than its factorization.

1042200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52110010 (or 52110008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1042200020 is about 32283.1228353144. The cubic root of 1042200020 is about 1013.8733144200.

Adding to 1042200020 its reverse (200022401), we get a palindrome (1242222421).

The spelling of 1042200020 in words is "one billion, forty-two million, two hundred thousand, twenty".