1233244420 has 48 divisors (see below), whose sum is σ = 2633828400. Its totient is φ = 484982784.

The previous prime is 1233244409. The next prime is 1233244427. The reversal of 1233244420 is 244423321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 135117376 + 1098127044 = 11624^2 + 33138^2 .

It is a super-2 number, since 2×1233244420² = 3041783598922272800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1233244427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302556 + ... + 306604.

It is an arithmetic number, because the mean of its divisors is an integer number (54871425).

Almost surely, 2^1233244420 is an apocalyptic number.

1233244420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233244420 is an abundant number, since it is smaller than the sum of its proper divisors (1400583980).

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

1233244420 is a wasteful number, since it uses less digits than its factorization.

1233244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1233244420 is about 35117.5799280076. The cubic root of 1233244420 is about 1072.3825037052.

Adding to 1233244420 its reverse (244423321), we get a palindrome (1477667741).

The spelling of 1233244420 in words is "one billion, two hundred thirty-three million, two hundred forty-four thousand, four hundred twenty".