11273240 has 32 divisors (see below), whose sum is σ = 27671760. Its totient is φ = 4099200.

The previous prime is 11273233. The next prime is 11273263. The reversal of 11273240 is 4237211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12371 + ... + 13250.

Almost surely, 2^11273240 is an apocalyptic number.

11273240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11273240 is an abundant number, since it is smaller than the sum of its proper divisors (16398520).

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

11273240 is a wasteful number, since it uses less digits than its factorization.

11273240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25643 (or 25639 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 11273240 is about 3357.5645935708. The cubic root of 11273240 is about 224.2244243102.

The spelling of 11273240 in words is "eleven million, two hundred seventy-three thousand, two hundred forty".