1232561442 has 32 divisors (see below), whose sum is σ = 2819318400. Its totient is φ = 351906048.

The previous prime is 1232561441. The next prime is 1232561459. The reversal of 1232561442 is 2441652321.

It is not an unprimeable number, because it can be changed into a prime (1232561441) 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, 52684 + ... + 72392.

It is an arithmetic number, because the mean of its divisors is an integer number (88103700).

Almost surely, 2^1232561442 is an apocalyptic number.

1232561442 is an abundant number, since it is smaller than the sum of its proper divisors (1586756958).

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

1232561442 is a wasteful number, since it uses less digits than its factorization.

1232561442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21210.

The product of its digits is 11520, while the sum is 30.

The square root of 1232561442 is about 35107.8544203430. The cubic root of 1232561442 is about 1072.1845032407.

The spelling of 1232561442 in words is "one billion, two hundred thirty-two million, five hundred sixty-one thousand, four hundred forty-two".