1115016840 has 320 divisors, whose sum is σ = 4321848960. Its totient is φ = 252564480.

The previous prime is 1115016829. The next prime is 1115016899. The reversal of 1115016840 is 486105111.

1115016840 is a `hidden beast` number, since 111 + 501 + 6 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4785364 + ... + 4785596.

It is an arithmetic number, because the mean of its divisors is an integer number (13505778).

Almost surely, 2^1115016840 is an apocalyptic number.

1115016840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115016840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2160924480).

1115016840 is an abundant number, since it is smaller than the sum of its proper divisors (3206832120).

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

1115016840 is a wasteful number, since it uses less digits than its factorization.

1115016840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1115016840 is about 33391.8678722829. The cubic root of 1115016840 is about 1036.9563501994.

It can be divided in two parts, 111501 and 6840, that added together give a triangular number (118341 = T₄₈₆).

The spelling of 1115016840 in words is "one billion, one hundred fifteen million, sixteen thousand, eight hundred forty".