11331390 has 32 divisors (see below), whose sum is σ = 31080960. Its totient is φ = 2589984.

The previous prime is 11331389. The next prime is 11331473. The reversal of 11331390 is 9313311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26770 + ... + 27189.

It is an arithmetic number, because the mean of its divisors is an integer number (971280).

Almost surely, 2^11331390 is an apocalyptic number.

11331390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11331390 is an abundant number, since it is smaller than the sum of its proper divisors (19749570).

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

11331390 is a wasteful number, since it uses less digits than its factorization.

11331390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53976.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 11331390 is about 3366.2130057381. The cubic root of 11331390 is about 224.6092972630.

The spelling of 11331390 in words is "eleven million, three hundred thirty-one thousand, three hundred ninety".