1107428861 has 24 divisors (see below), whose sum is σ = 1407765024. Its totient is φ = 861446880.

The previous prime is 1107428849. The next prime is 1107428867. The reversal of 1107428861 is 1688247011.

It is a happy number.

It is not a de Polignac number, because 1107428861 - 2¹⁸ = 1107166717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107428867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393686 + ... + 396488.

It is an arithmetic number, because the mean of its divisors is an integer number (58656876).

Almost surely, 2^1107428861 is an apocalyptic number.

1107428861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1107428861 is a deficient number, since it is larger than the sum of its proper divisors (300336163).

1107428861 is a wasteful number, since it uses less digits than its factorization.

1107428861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 1107428861 is about 33278.0537441720. The cubic root of 1107428861 is about 1034.5987416693.

The spelling of 1107428861 in words is "one billion, one hundred seven million, four hundred twenty-eight thousand, eight hundred sixty-one".