423237242 has 4 divisors (see below), whose sum is σ = 634855866. Its totient is φ = 211618620.

The previous prime is 423237233. The next prime is 423237263. The reversal of 423237242 is 242732324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 372528601 + 50708641 = 19301^2 + 7121^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105809309 + ... + 105809312.

Almost surely, 2^423237242 is an apocalyptic number.

423237242 is a deficient number, since it is larger than the sum of its proper divisors (211618624).

423237242 is a wasteful number, since it uses less digits than its factorization.

423237242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211618623.

The product of its digits is 16128, while the sum is 29.

The square root of 423237242 is about 20572.7305431243. The cubic root of 423237242 is about 750.8063871940.

Adding to 423237242 its reverse (242732324), we get a palindrome (665969566).

The spelling of 423237242 in words is "four hundred twenty-three million, two hundred thirty-seven thousand, two hundred forty-two".