11147028440 has 16 divisors (see below), whose sum is σ = 25080814080. Its totient is φ = 4458811360.

The previous prime is 11147028421. The next prime is 11147028527. The reversal of 11147028440 is 4482074111.

It is a junction number, because it is equal to n+sod(n) for n = 11147028397 and 11147028406.

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, 139337816 + ... + 139337895.

It is an arithmetic number, because the mean of its divisors is an integer number (1567550880).

Almost surely, 2^11147028440 is an apocalyptic number.

11147028440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11147028440 is an abundant number, since it is smaller than the sum of its proper divisors (13933785640).

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

11147028440 is a wasteful number, since it uses less digits than its factorization.

11147028440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278675722 (or 278675718 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The spelling of 11147028440 in words is "eleven billion, one hundred forty-seven million, twenty-eight thousand, four hundred forty".