11426590 has 32 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 3895584.

The previous prime is 11426557. The next prime is 11426603. The reversal of 11426590 is 9562411.

11426590 = T₃₃₂ + T₃₃₃ + ... + T₄₇₁.

11426590 is a nontrivial binomial coefficient, being equal to C(4781, 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16389 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^11426590 is an apocalyptic number.

11426590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11426590 is the 4780-th triangular number.

11426590 is the 1594-th centered nonagonal number.

11426590 is an abundant number, since it is smaller than the sum of its proper divisors (12212450).

11426590 is a wasteful number, since it uses less digits than its factorization.

11426590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 11426590 is about 3380.3239489729. The cubic root of 11426590 is about 225.2365577879.

The spelling of 11426590 in words is "eleven million, four hundred twenty-six thousand, five hundred ninety".