11109492 has 18 divisors (see below), whose sum is σ = 28082418. Its totient is φ = 3703152.

The previous prime is 11109491. The next prime is 11109493. The reversal of 11109492 is 29490111.

It is an interprime number because it is at equal distance from previous prime (11109491) and next prime (11109493).

It can be written as a sum of positive squares in only one way, i.e., 11048976 + 60516 = 3324^2 + 246^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154263 + ... + 154334.

Almost surely, 2^11109492 is an apocalyptic number.

11109492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11109492 is an abundant number, since it is smaller than the sum of its proper divisors (16972926).

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

11109492 is a wasteful number, since it uses less digits than its factorization.

11109492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308607 (or 308602 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 11109492 is about 3333.0904578184. The cubic root of 11109492 is about 223.1334773043.

The spelling of 11109492 in words is "eleven million, one hundred nine thousand, four hundred ninety-two".