1240233242 has 4 divisors (see below), whose sum is σ = 1860349866. Its totient is φ = 620116620.

The previous prime is 1240233223. The next prime is 1240233257. The reversal of 1240233242 is 2423320421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2423320421 = 18959 ⋅127819.

It can be written as a sum of positive squares in only one way, i.e., 703893961 + 536339281 = 26531^2 + 23159^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310058309 + ... + 310058312.

Almost surely, 2^1240233242 is an apocalyptic number.

1240233242 is a deficient number, since it is larger than the sum of its proper divisors (620116624).

1240233242 is an equidigital number, since it uses as much as digits as its factorization.

1240233242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620116623.

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

The square root of 1240233242 is about 35216.9453814495. The cubic root of 1240233242 is about 1074.4044271227.

Adding to 1240233242 its reverse (2423320421), we get a palindrome (3663553663).

The spelling of 1240233242 in words is "one billion, two hundred forty million, two hundred thirty-three thousand, two hundred forty-two".