1242432402 has 16 divisors (see below), whose sum is σ = 2486706912. Its totient is φ = 413837120.

The previous prime is 1242432397. The next prime is 1242432449. The reversal of 1242432402 is 2042342421.

It is a super-3 number, since 3×1242432402³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67908 + ... + 84239.

It is an arithmetic number, because the mean of its divisors is an integer number (155419182).

Almost surely, 2^1242432402 is an apocalyptic number.

1242432402 is an abundant number, since it is smaller than the sum of its proper divisors (1244274510).

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

1242432402 is a wasteful number, since it uses less digits than its factorization.

1242432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153513.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1242432402 is about 35248.1545899924. The cubic root of 1242432402 is about 1075.0390905562.

Adding to 1242432402 its reverse (2042342421), we get a palindrome (3284774823).

The spelling of 1242432402 in words is "one billion, two hundred forty-two million, four hundred thirty-two thousand, four hundred two".