1235920224 has 96 divisors (see below), whose sum is σ = 4044854016. Its totient is φ = 321016320.

The previous prime is 1235920223. The next prime is 1235920229. The reversal of 1235920224 is 4220295321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1235920191 and 1235920200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235920223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76207 + ... + 90990.

It is an arithmetic number, because the mean of its divisors is an integer number (42133896).

Almost surely, 2^1235920224 is an apocalyptic number.

1235920224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1235920224 is an abundant number, since it is smaller than the sum of its proper divisors (2808933792).

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

1235920224 is a wasteful number, since it uses less digits than its factorization.

1235920224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167228 (or 167220 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1235920224 is about 35155.6570696666. The cubic root of 1235920224 is about 1073.1575359457.

The spelling of 1235920224 in words is "one billion, two hundred thirty-five million, nine hundred twenty thousand, two hundred twenty-four".