11880428 has 24 divisors (see below), whose sum is σ = 24001824. Its totient is φ = 5040000.

The previous prime is 11880419. The next prime is 11880457. The reversal of 11880428 is 82408811.

It is a super-2 number, since 2×11880428² = 282289138926368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11880394 and 11880403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (1000076).

Almost surely, 2^11880428 is an apocalyptic number.

It is an amenable number.

11880428 is an abundant number, since it is smaller than the sum of its proper divisors (12121396).

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

11880428 is a wasteful number, since it uses less digits than its factorization.

11880428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 11880428 is about 3446.7996750609. The cubic root of 11880428 is about 228.1798877873.

The spelling of 11880428 in words is "eleven million, eight hundred eighty thousand, four hundred twenty-eight".