1242243435 has 16 divisors (see below), whose sum is σ = 1988246016. Its totient is φ = 662311008.

The previous prime is 1242243419. The next prime is 1242243451. The reversal of 1242243435 is 5343422421.

It is an interprime number because it is at equal distance from previous prime (1242243419) and next prime (1242243451).

It is not a de Polignac number, because 1242243435 - 2⁴ = 1242243419 is a prime.

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, 40062 + ... + 63948.

It is an arithmetic number, because the mean of its divisors is an integer number (124265376).

Almost surely, 2^1242243435 is an apocalyptic number.

1242243435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1242243435 is a deficient number, since it is larger than the sum of its proper divisors (746002581).

1242243435 is a wasteful number, since it uses less digits than its factorization.

1242243435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27362.

The product of its digits is 23040, while the sum is 30.

The square root of 1242243435 is about 35245.4739647518. The cubic root of 1242243435 is about 1074.9845853207.

Adding to 1242243435 its reverse (5343422421), we get a palindrome (6585665856).

The spelling of 1242243435 in words is "one billion, two hundred forty-two million, two hundred forty-three thousand, four hundred thirty-five".