11442990 has 96 divisors (see below), whose sum is σ = 31042656. Its totient is φ = 2695680.

The previous prime is 11442979. The next prime is 11443009. The reversal of 11442990 is 9924411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187560 + ... + 187620.

It is an arithmetic number, because the mean of its divisors is an integer number (323361).

Almost surely, 2^11442990 is an apocalyptic number.

11442990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11442990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15521328).

11442990 is an abundant number, since it is smaller than the sum of its proper divisors (19599666).

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

11442990 is a wasteful number, since it uses less digits than its factorization.

11442990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 11442990 is about 3382.7488821963. The cubic root of 11442990 is about 225.3442631122.

The spelling of 11442990 in words is "eleven million, four hundred forty-two thousand, nine hundred ninety".