1233420432 has 20 divisors (see below), whose sum is σ = 3186336240. Its totient is φ = 411140128.

The previous prime is 1233420401. The next prime is 1233420439. The reversal of 1233420432 is 2340243321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1233420439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12848082 + ... + 12848177.

It is an arithmetic number, because the mean of its divisors is an integer number (159316812).

Almost surely, 2^1233420432 is an apocalyptic number.

1233420432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233420432 is an abundant number, since it is smaller than the sum of its proper divisors (1952915808).

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

1233420432 is a wasteful number, since it uses less digits than its factorization.

1233420432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25696270 (or 25696264 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1233420432 is about 35120.0858768882. The cubic root of 1233420432 is about 1072.4335190615.

Adding to 1233420432 its reverse (2340243321), we get a palindrome (3573663753).

The spelling of 1233420432 in words is "one billion, two hundred thirty-three million, four hundred twenty thousand, four hundred thirty-two".