1233505630 has 64 divisors (see below), whose sum is σ = 2631025152. Its totient is φ = 407548800.

The previous prime is 1233505607. The next prime is 1233505639. The reversal of 1233505630 is 365053321.

It is a super-2 number, since 2×1233505630² = 3043072278483393800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233505639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274905 + ... + 279355.

It is an arithmetic number, because the mean of its divisors is an integer number (41109768).

Almost surely, 2^1233505630 is an apocalyptic number.

1233505630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1233505630 is an abundant number, since it is smaller than the sum of its proper divisors (1397519522).

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

1233505630 is a wasteful number, since it uses less digits than its factorization.

1233505630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 1233505630 is about 35121.2988085577. The cubic root of 1233505630 is about 1072.4582111251.

Adding to 1233505630 its reverse (365053321), we get a palindrome (1598558951).

The spelling of 1233505630 in words is "one billion, two hundred thirty-three million, five hundred five thousand, six hundred thirty".