1235005540 has 24 divisors (see below), whose sum is σ = 2597474880. Its totient is φ = 493247328.

The previous prime is 1235005501. The next prime is 1235005547. The reversal of 1235005540 is 455005321.

It is not an unprimeable number, because it can be changed into a prime (1235005547) 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 7 ways as a sum of consecutive naturals, for example, 33672 + ... + 60031.

It is an arithmetic number, because the mean of its divisors is an integer number (108228120).

Almost surely, 2^1235005540 is an apocalyptic number.

1235005540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235005540 is an abundant number, since it is smaller than the sum of its proper divisors (1362469340).

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

1235005540 is a wasteful number, since it uses less digits than its factorization.

1235005540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94371 (or 94369 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1235005540 is about 35142.6456033122. The cubic root of 1235005540 is about 1072.8927285944.

The spelling of 1235005540 in words is "one billion, two hundred thirty-five million, five thousand, five hundred forty".