11913490 has 16 divisors (see below), whose sum is σ = 22184280. Its totient is φ = 4600960.

The previous prime is 11913479. The next prime is 11913491. The reversal of 11913490 is 9431911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9259849 + 2653641 = 3043^2 + 1629^2 .

It is not an unprimeable number, because it can be changed into a prime (11913491) by changing a digit.

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, 20251 + ... + 20830.

Almost surely, 2^11913490 is an apocalyptic number.

11913490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11913490 is a deficient number, since it is larger than the sum of its proper divisors (10270790).

11913490 is a wasteful number, since it uses less digits than its factorization.

11913490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41117.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11913490 is about 3451.5923861314. The cubic root of 11913490 is about 228.3913587353.

It can be divided in two parts, 11913 and 490, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11913490 in words is "eleven million, nine hundred thirteen thousand, four hundred ninety".