1233630540 has 48 divisors (see below), whose sum is σ = 3837963360. Its totient is φ = 328968000.

The previous prime is 1233630539. The next prime is 1233630547. The reversal of 1233630540 is 450363321.

It is a happy number.

1233630540 is a `hidden beast` number, since 1 + 23 + 3 + 630 + 5 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1233630547) 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, 1141711 + ... + 1142790.

It is an arithmetic number, because the mean of its divisors is an integer number (79957570).

Almost surely, 2^1233630540 is an apocalyptic number.

1233630540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233630540 is an abundant number, since it is smaller than the sum of its proper divisors (2604332820).

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

1233630540 is a wasteful number, since it uses less digits than its factorization.

1233630540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284519 (or 2284511 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 1233630540 is about 35123.0770292126. The cubic root of 1233630540 is about 1072.4944104555.

Adding to 1233630540 its reverse (450363321), we get a palindrome (1683993861).

The spelling of 1233630540 in words is "one billion, two hundred thirty-three million, six hundred thirty thousand, five hundred forty".