1240888536 has 48 divisors (see below), whose sum is σ = 3451578000. Its totient is φ = 402449472.

The previous prime is 1240888489. The next prime is 1240888547. The reversal of 1240888536 is 6358880421.

It is a junction number, because it is equal to n+sod(n) for n = 1240888491 and 1240888500.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 230236 + ... + 235563.

It is an arithmetic number, because the mean of its divisors is an integer number (71907875).

Almost surely, 2^1240888536 is an apocalyptic number.

It is an amenable number.

1240888536 is an abundant number, since it is smaller than the sum of its proper divisors (2210689464).

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

1240888536 is a wasteful number, since it uses less digits than its factorization.

1240888536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465848 (or 465841 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 1240888536 is about 35226.2478274369. The cubic root of 1240888536 is about 1074.5936191738.

The spelling of 1240888536 in words is "one billion, two hundred forty million, eight hundred eighty-eight thousand, five hundred thirty-six".