11428554 has 16 divisors (see below), whose sum is σ = 23084640. Its totient is φ = 3771600.

The previous prime is 11428531. The next prime is 11428559. The reversal of 11428554 is 45582411.

11428554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11428554² = 261223693061832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11428559) 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, 8824 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (1442790).

Almost surely, 2^11428554 is an apocalyptic number.

11428554 is an abundant number, since it is smaller than the sum of its proper divisors (11656086).

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

11428554 is a wasteful number, since it uses less digits than its factorization.

11428554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18965.

The product of its digits is 6400, while the sum is 30.

The square root of 11428554 is about 3380.6144411926. The cubic root of 11428554 is about 225.2494615868.

The spelling of 11428554 in words is "eleven million, four hundred twenty-eight thousand, five hundred fifty-four".