1111534440 has 32 divisors (see below), whose sum is σ = 3334603680. Its totient is φ = 296409152.

The previous prime is 1111534433. The next prime is 1111534483. The reversal of 1111534440 is 444351111.

It is a happy number.

It is a super-2 number, since 2×1111534440² = 2471017622612227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1111534440.

It is an unprimeable number.

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, 4631274 + ... + 4631513.

It is an arithmetic number, because the mean of its divisors is an integer number (104206365).

Almost surely, 2^1111534440 is an apocalyptic number.

1111534440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111534440 is an abundant number, since it is smaller than the sum of its proper divisors (2223069240).

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

1111534440 is a wasteful number, since it uses less digits than its factorization.

1111534440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262801 (or 9262797 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1111534440 is about 33339.6826619571. The cubic root of 1111534440 is about 1035.8756900781.

Adding to 1111534440 its reverse (444351111), we get a palindrome (1555885551).

The spelling of 1111534440 in words is "one billion, one hundred eleven million, five hundred thirty-four thousand, four hundred forty".