11139480 has 192 divisors, whose sum is σ = 41277600. Its totient is φ = 2580480.

The previous prime is 11139463. The next prime is 11139493. The reversal of 11139480 is 8493111.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 114792 + ... + 114888.

Almost surely, 2^11139480 is an apocalyptic number.

11139480 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 11139480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20638800).

11139480 is an abundant number, since it is smaller than the sum of its proper divisors (30138120).

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

11139480 is a wasteful number, since it uses less digits than its factorization.

11139480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11139480 is about 3337.5859539494. The cubic root of 11139480 is about 223.3340659861.

It can be divided in two parts, 111 and 39480, that multiplied together give a triangular number (4382280 = T₂₉₆₀).

The spelling of 11139480 in words is "eleven million, one hundred thirty-nine thousand, four hundred eighty".