11649078 has 48 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 3269808.

The previous prime is 11649073. The next prime is 11649083. The reversal of 11649078 is 87094611.

11649078 is a `hidden beast` number, since 1 + 1 + 649 + 0 + 7 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (11649073) and next prime (11649083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11649073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6651 + ... + 8217.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 2^11649078 is an apocalyptic number.

11649078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11649078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14676480).

11649078 is an abundant number, since it is smaller than the sum of its proper divisors (17703882).

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

11649078 is a wasteful number, since it uses less digits than its factorization.

11649078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 11649078 is about 3413.0745670143. The cubic root of 11649078 is about 226.6890371039.

It can be divided in two parts, 116 and 49078, that added together give a palindrome (49194).

The spelling of 11649078 in words is "eleven million, six hundred forty-nine thousand, seventy-eight".