1162039840 has 192 divisors, whose sum is σ = 3072577536. Its totient is φ = 412618752.

The previous prime is 1162039817. The next prime is 1162039859. The reversal of 1162039840 is 489302611.

It is a junction number, because it is equal to n+sod(n) for n = 1162039796 and 1162039805.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9149857 + ... + 9149983.

It is an arithmetic number, because the mean of its divisors is an integer number (16003008).

Almost surely, 2^1162039840 is an apocalyptic number.

1162039840 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 1162039840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536288768).

1162039840 is an abundant number, since it is smaller than the sum of its proper divisors (1910537696).

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

1162039840 is a wasteful number, since it uses less digits than its factorization.

1162039840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1162039840 is about 34088.7054609001. The cubic root of 1162039840 is about 1051.3331034201. Note that the first 3 decimals are identical.

The spelling of 1162039840 in words is "one billion, one hundred sixty-two million, thirty-nine thousand, eight hundred forty".