11990042460 has 432 divisors, whose sum is σ = 42455387520. Its totient is φ = 2732083200.

The previous prime is 11990042459. The next prime is 11990042479. The reversal of 11990042460 is 6424009911.

It is a happy number.

11990042460 is a `hidden beast` number, since 1 + 199 + 0 + 0 + 4 + 2 + 460 = 666.

11990042460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11990042460² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 143 ways as a sum of consecutive naturals, for example, 25896189 + ... + 25896651.

It is an arithmetic number, because the mean of its divisors is an integer number (98276360).

Almost surely, 2^11990042460 is an apocalyptic number.

11990042460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11990042460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21227693760).

11990042460 is an abundant number, since it is smaller than the sum of its proper divisors (30465345060).

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

11990042460 is a wasteful number, since it uses less digits than its factorization.

11990042460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 11990042460 in words is "eleven billion, nine hundred ninety million, forty-two thousand, four hundred sixty".