1043600420 has 24 divisors (see below), whose sum is σ = 2320476984. Its totient is φ = 392884736.

The previous prime is 1043600419. The next prime is 1043600473. The reversal of 1043600420 is 240063401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58644964 + 984955456 = 7658^2 + 31384^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1043600392 and 1043600401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1534367 + ... + 1535046.

It is an arithmetic number, because the mean of its divisors is an integer number (96686541).

Almost surely, 2^1043600420 is an apocalyptic number.

1043600420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043600420 is an abundant number, since it is smaller than the sum of its proper divisors (1276876564).

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

1043600420 is a wasteful number, since it uses less digits than its factorization.

1043600420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069439 (or 3069437 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1043600420 is about 32304.8049057721. The cubic root of 1043600420 is about 1014.3272236817.

Adding to 1043600420 its reverse (240063401), we get a palindrome (1283663821).

The spelling of 1043600420 in words is "one billion, forty-three million, six hundred thousand, four hundred twenty".