1235267442 has 64 divisors (see below), whose sum is σ = 2819980800. Its totient is φ = 400619520.

The previous prime is 1235267389. The next prime is 1235267477. The reversal of 1235267442 is 2447625321.

1235267442 is a `hidden beast` number, since 1 + 23 + 526 + 74 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1235267397 and 1235267406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458034 + ... + 460722.

It is an arithmetic number, because the mean of its divisors is an integer number (44062200).

Almost surely, 2^1235267442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1235267442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1409990400).

1235267442 is an abundant number, since it is smaller than the sum of its proper divisors (1584713358).

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

1235267442 is a wasteful number, since it uses less digits than its factorization.

1235267442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2922 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 1235267442 is about 35146.3716761773. The cubic root of 1235267442 is about 1072.9685643921.

The spelling of 1235267442 in words is "one billion, two hundred thirty-five million, two hundred sixty-seven thousand, four hundred forty-two".