1242434 has 4 divisors (see below), whose sum is σ = 1863654. Its totient is φ = 621216.

The previous prime is 1242421. The next prime is 1242457. The reversal of 1242434 is 4342421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4342421 = 233 ⋅18637.

It can be written as a sum of positive squares in only one way, i.e., 748225 + 494209 = 865^2 + 703^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310607 + ... + 310610.

2^1242434 is an apocalyptic number.

1242434 is a deficient number, since it is larger than the sum of its proper divisors (621220).

1242434 is an equidigital number, since it uses as much as digits as its factorization.

1242434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621219.

The product of its digits is 768, while the sum is 20.

The square root of 1242434 is about 1114.6452350412. The cubic root of 1242434 is about 107.5039551456.

Adding to 1242434 its reverse (4342421), we get a palindrome (5584855).

The spelling of 1242434 in words is "one million, two hundred forty-two thousand, four hundred thirty-four".