11540690 has 32 divisors (see below), whose sum is σ = 23967360. Its totient is φ = 3919104.

The previous prime is 11540681. The next prime is 11540693. The reversal of 11540690 is 9604511.

It is a super-2 number, since 2×11540690² = 266375051352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11540693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7181 + ... + 8639.

It is an arithmetic number, because the mean of its divisors is an integer number (748980).

Almost surely, 2^11540690 is an apocalyptic number.

11540690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11540690 is an abundant number, since it is smaller than the sum of its proper divisors (12426670).

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

11540690 is a wasteful number, since it uses less digits than its factorization.

11540690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 11540690 is about 3397.1591072542. The cubic root of 11540690 is about 225.9837746464.

The spelling of 11540690 in words is "eleven million, five hundred forty thousand, six hundred ninety".