302431442 has 8 divisors (see below), whose sum is σ = 454164732. Its totient is φ = 151043200.

The previous prime is 302431429. The next prime is 302431453. The reversal of 302431442 is 244134203.

It can be written as a sum of positive squares in 2 ways, for example, as 279859441 + 22572001 = 16729^2 + 4751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×302431442² = 182929554220398728, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 84059 + ... + 87582.

Almost surely, 2^302431442 is an apocalyptic number.

302431442 is a deficient number, since it is larger than the sum of its proper divisors (151733290).

302431442 is a wasteful number, since it uses less digits than its factorization.

302431442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172524.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 302431442 is about 17390.5561153173. The cubic root of 302431442 is about 671.2366275496.

Adding to 302431442 its reverse (244134203), we get a palindrome (546565645).

The spelling of 302431442 in words is "three hundred two million, four hundred thirty-one thousand, four hundred forty-two".