11903240 has 16 divisors (see below), whose sum is σ = 26782380. Its totient is φ = 4761280.

The previous prime is 11903237. The next prime is 11903249. The reversal of 11903240 is 4230911.

It can be written as a sum of positive squares in 2 ways, for example, as 11464996 + 438244 = 3386^2 + 662^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (11903249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148751 + ... + 148830.

Almost surely, 2^11903240 is an apocalyptic number.

11903240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11903240 is an abundant number, since it is smaller than the sum of its proper divisors (14879140).

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

11903240 is a wasteful number, since it uses less digits than its factorization.

11903240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297592 (or 297588 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11903240 is about 3450.1072447099. The cubic root of 11903240 is about 228.3258396437.

The spelling of 11903240 in words is "eleven million, nine hundred three thousand, two hundred forty".