11880445 has 4 divisors (see below), whose sum is σ = 14256540. Its totient is φ = 9504352.

The previous prime is 11880419. The next prime is 11880457. The reversal of 11880445 is 54408811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9078169 + 2802276 = 3013^2 + 1674^2 .

It is a cyclic number.

It is not a de Polignac number, because 11880445 - 2¹⁷ = 11749373 is a prime.

It is a super-2 number, since 2×11880445² = 282289946796050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188040 + ... + 1188049.

It is an arithmetic number, because the mean of its divisors is an integer number (3564135).

Almost surely, 2^11880445 is an apocalyptic number.

It is an amenable number.

11880445 is a deficient number, since it is larger than the sum of its proper divisors (2376095).

11880445 is an equidigital number, since it uses as much as digits as its factorization.

11880445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376094.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 11880445 is about 3446.8021411157. The cubic root of 11880445 is about 228.1799966233.

The spelling of 11880445 in words is "eleven million, eight hundred eighty thousand, four hundred forty-five".