1240230142 has 8 divisors (see below), whose sum is σ = 1885829616. Its totient is φ = 611620272.

The previous prime is 1240230137. The next prime is 1240230221. The reversal of 1240230142 is 2410320421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4247218 + ... + 4247509.

It is an arithmetic number, because the mean of its divisors is an integer number (235728702).

Almost surely, 2^1240230142 is an apocalyptic number.

1240230142 is a deficient number, since it is larger than the sum of its proper divisors (645599474).

1240230142 is an equidigital number, since it uses as much as digits as its factorization.

1240230142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8494802.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1240230142 is about 35216.9013685191. The cubic root of 1240230142 is about 1074.4035319533.

Adding to 1240230142 its reverse (2410320421), we get a palindrome (3650550563).

The spelling of 1240230142 in words is "one billion, two hundred forty million, two hundred thirty thousand, one hundred forty-two".