1232355040 has 192 divisors, whose sum is σ = 3487131648. Its totient is φ = 402739200.

The previous prime is 1232354911. The next prime is 1232355083. The reversal of 1232355040 is 405532321.

It is a super-2 number, since 2×1232355040² = 3037397889226803200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1232354996 and 1232355014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2157955 + ... + 2158525.

It is an arithmetic number, because the mean of its divisors is an integer number (18162144).

Almost surely, 2^1232355040 is an apocalyptic number.

1232355040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232355040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743565824).

1232355040 is an abundant number, since it is smaller than the sum of its proper divisors (2254776608).

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

1232355040 is a wasteful number, since it uses less digits than its factorization.

1232355040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1232355040 is about 35104.9147556293. The cubic root of 1232355040 is about 1072.1246513549.

Adding to 1232355040 its reverse (405532321), we get a palindrome (1637887361).

The spelling of 1232355040 in words is "one billion, two hundred thirty-two million, three hundred fifty-five thousand, forty".