1240045230 has 32 divisors (see below), whose sum is σ = 3105506304. Its totient is φ = 316301216.

The previous prime is 1240045141. The next prime is 1240045231. The reversal of 1240045230 is 325400421.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1240045197 and 1240045206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240045231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897894 + ... + 899273.

It is an arithmetic number, because the mean of its divisors is an integer number (97047072).

Almost surely, 2^1240045230 is an apocalyptic number.

1240045230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240045230 is an abundant number, since it is smaller than the sum of its proper divisors (1865461074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240045230 is a wasteful number, since it uses less digits than its factorization.

1240045230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797200.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 1240045230 is about 35214.2759403058. The cubic root of 1240045230 is about 1074.3501332672.

Adding to 1240045230 its reverse (325400421), we get a palindrome (1565445651).

It can be divided in two parts, 12400 and 45230, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 1240045230 in words is "one billion, two hundred forty million, forty-five thousand, two hundred thirty".