11397140 has 24 divisors (see below), whose sum is σ = 25342632. Its totient is φ = 4290560.

The previous prime is 11397103. The next prime is 11397163. The reversal of 11397140 is 4179311.

It can be written as a sum of positive squares in 4 ways, for example, as 1373584 + 10023556 = 1172^2 + 3166^2 .

It is a congruent number.

It is an unprimeable number.

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, 16421 + ... + 17100.

It is an arithmetic number, because the mean of its divisors is an integer number (1055943).

Almost surely, 2^11397140 is an apocalyptic number.

11397140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11397140 is an abundant number, since it is smaller than the sum of its proper divisors (13945492).

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

11397140 is a wasteful number, since it uses less digits than its factorization.

11397140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33547 (or 33545 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 11397140 is about 3375.9650472124. The cubic root of 11397140 is about 225.0428889434.

The spelling of 11397140 in words is "eleven million, three hundred ninety-seven thousand, one hundred forty".