1115799040 has 40 divisors (see below), whose sum is σ = 2675308680. Its totient is φ = 446318592.

The previous prime is 1115799019. The next prime is 1115799043. The reversal of 1115799040 is 409975111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115799043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215370 + ... + 220489.

It is an arithmetic number, because the mean of its divisors is an integer number (66882717).

Almost surely, 2^1115799040 is an apocalyptic number.

1115799040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115799040 is an abundant number, since it is smaller than the sum of its proper divisors (1559509640).

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

1115799040 is an frugal number, since it uses more digits than its factorization.

1115799040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435882 (or 435866 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 1115799040 is about 33403.5782514389. The cubic root of 1115799040 is about 1037.1987733432.

The spelling of 1115799040 in words is "one billion, one hundred fifteen million, seven hundred ninety-nine thousand, forty".