11389090 has 16 divisors (see below), whose sum is σ = 21162240. Its totient is φ = 4408560.

The previous prime is 11389073. The next prime is 11389093. The reversal of 11389090 is 9098311.

It is a super-2 number, since 2×11389090² = 259422742056200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (11389093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18060 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (1322640).

Almost surely, 2^11389090 is an apocalyptic number.

11389090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11389090 is a deficient number, since it is larger than the sum of its proper divisors (9773150).

11389090 is a wasteful number, since it uses less digits than its factorization.

11389090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36777.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 11389090 is about 3374.7725849307. The cubic root of 11389090 is about 224.9898925501.

The spelling of 11389090 in words is "eleven million, three hundred eighty-nine thousand, ninety".