11127990 has 32 divisors (see below), whose sum is σ = 27164160. Its totient is φ = 2916704.

The previous prime is 11127973. The next prime is 11127997. The reversal of 11127990 is 9972111.

It is a super-2 number, since 2×11127990² = 247664322880200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11127997) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1374 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (848880).

Almost surely, 2^11127990 is an apocalyptic number.

11127990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11127990 is an abundant number, since it is smaller than the sum of its proper divisors (16036170).

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

11127990 is a wasteful number, since it uses less digits than its factorization.

11127990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 11127990 is about 3335.8642058693. The cubic root of 11127990 is about 223.2572523703.

The spelling of 11127990 in words is "eleven million, one hundred twenty-seven thousand, nine hundred ninety".