1421233242 has 64 divisors (see below), whose sum is σ = 3347495424. Its totient is φ = 396584640.

The previous prime is 1421233217. The next prime is 1421233267. The reversal of 1421233242 is 2423321241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1421233217) and next prime (1421233267).

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, 398913 + ... + 402459.

It is an arithmetic number, because the mean of its divisors is an integer number (52304616).

Almost surely, 2^1421233242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421233242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673747712).

1421233242 is an abundant number, since it is smaller than the sum of its proper divisors (1926262182).

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

1421233242 is a wasteful number, since it uses less digits than its factorization.

1421233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043.

The product of its digits is 2304, while the sum is 24.

The square root of 1421233242 is about 37699.2472338640. The cubic root of 1421233242 is about 1124.3161584295.

Adding to 1421233242 its reverse (2423321241), we get a palindrome (3844554483).

The spelling of 1421233242 in words is "one billion, four hundred twenty-one million, two hundred thirty-three thousand, two hundred forty-two".