1235430240 has 96 divisors (see below), whose sum is σ = 4245405696. Its totient is φ = 299496960.

The previous prime is 1235430233. The next prime is 1235430241. The reversal of 1235430240 is 420345321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1235430240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235430241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111712 + ... + 122271.

It is an arithmetic number, because the mean of its divisors is an integer number (44222976).

Almost surely, 2^1235430240 is an apocalyptic number.

1235430240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235430240 is an abundant number, since it is smaller than the sum of its proper divisors (3009975456).

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

1235430240 is a wasteful number, since it uses less digits than its factorization.

1235430240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234012 (or 234004 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1235430240 is about 35148.6875999659. The cubic root of 1235430240 is about 1073.0156984397.

Adding to 1235430240 its reverse (420345321), we get a palindrome (1655775561).

The spelling of 1235430240 in words is "one billion, two hundred thirty-five million, four hundred thirty thousand, two hundred forty".