1242436498 has 4 divisors (see below), whose sum is σ = 1863654750. Its totient is φ = 621218248.

The previous prime is 1242436477. The next prime is 1242436499. The reversal of 1242436498 is 8946342421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8946342421 = 31 ⋅288591691.

It can be written as a sum of positive squares in only one way, i.e., 997106929 + 245329569 = 31577^2 + 15663^2 .

It is not an unprimeable number, because it can be changed into a prime (1242436499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310609123 + ... + 310609126.

Almost surely, 2^1242436498 is an apocalyptic number.

1242436498 is a deficient number, since it is larger than the sum of its proper divisors (621218252).

1242436498 is an equidigital number, since it uses as much as digits as its factorization.

1242436498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621218251.

The product of its digits is 331776, while the sum is 43.

The square root of 1242436498 is about 35248.2126922770. The cubic root of 1242436498 is about 1075.0402719364.

The spelling of 1242436498 in words is "one billion, two hundred forty-two million, four hundred thirty-six thousand, four hundred ninety-eight".