1235923220 has 48 divisors (see below), whose sum is σ = 2968213248. Its totient is φ = 423459840.

The previous prime is 1235923207. The next prime is 1235923259. The reversal of 1235923220 is 223295321.

It is a congruent number.

It is an unprimeable number.

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, 404900 + ... + 407940.

It is an arithmetic number, because the mean of its divisors is an integer number (61837776).

Almost surely, 2^1235923220 is an apocalyptic number.

1235923220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235923220 is an abundant number, since it is smaller than the sum of its proper divisors (1732290028).

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

1235923220 is a wasteful number, since it uses less digits than its factorization.

1235923220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960 (or 5958 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1235923220 is about 35155.6996801372. The cubic root of 1235923220 is about 1073.1584030937.

The spelling of 1235923220 in words is "one billion, two hundred thirty-five million, nine hundred twenty-three thousand, two hundred twenty".