11862580 has 24 divisors (see below), whose sum is σ = 24985800. Its totient is φ = 4730880.

The previous prime is 11862577. The next prime is 11862581. The reversal of 11862580 is 8526811.

It can be written as a sum of positive squares in 4 ways, for example, as 4145296 + 7717284 = 2036^2 + 2778^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11862581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8320 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (1041075).

Almost surely, 2^11862580 is an apocalyptic number.

11862580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11862580 is an abundant number, since it is smaller than the sum of its proper divisors (13123220).

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

11862580 is a wasteful number, since it uses less digits than its factorization.

11862580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1777 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 11862580 is about 3444.2096335734. The cubic root of 11862580 is about 228.0655654260.

The spelling of 11862580 in words is "eleven million, eight hundred sixty-two thousand, five hundred eighty".