11387290 has 8 divisors (see below), whose sum is σ = 20497140. Its totient is φ = 4554912.

The previous prime is 11387287. The next prime is 11387291. The reversal of 11387290 is 9278311.

11387290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10909809 + 477481 = 3303^2 + 691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11387291) 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, 569355 + ... + 569374.

Almost surely, 2^11387290 is an apocalyptic number.

11387290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11387290 is a deficient number, since it is larger than the sum of its proper divisors (9109850).

11387290 is a wasteful number, since it uses less digits than its factorization.

11387290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138736.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 11387290 is about 3374.5058897563. The cubic root of 11387290 is about 224.9780390088.

The spelling of 11387290 in words is "eleven million, three hundred eighty-seven thousand, two hundred ninety".