1113446640 has 40 divisors (see below), whose sum is σ = 3451685328. Its totient is φ = 296919040.

The previous prime is 1113446627. The next prime is 1113446647. The reversal of 1113446640 is 466443111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1113446598 and 1113446607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113446647) 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, 2319441 + ... + 2319920.

Almost surely, 2^1113446640 is an apocalyptic number.

1113446640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113446640 is an abundant number, since it is smaller than the sum of its proper divisors (2338238688).

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

1113446640 is a wasteful number, since it uses less digits than its factorization.

1113446640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639377 (or 4639371 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1113446640 is about 33368.3478763933. The cubic root of 1113446640 is about 1036.4693639023.

Adding to 1113446640 its reverse (466443111), we get a palindrome (1579889751).

The spelling of 1113446640 in words is "one billion, one hundred thirteen million, four hundred forty-six thousand, six hundred forty".