1167250840 has 128 divisors (see below), whose sum is σ = 3101091840. Its totient is φ = 387058176.

The previous prime is 1167250817. The next prime is 1167250849. The reversal of 1167250840 is 480527611.

It is a junction number, because it is equal to n+sod(n) for n = 1167250796 and 1167250805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167250849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3180337 + ... + 3180703.

It is an arithmetic number, because the mean of its divisors is an integer number (24227280).

Almost surely, 2^1167250840 is an apocalyptic number.

1167250840 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 1167250840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550545920).

1167250840 is an abundant number, since it is smaller than the sum of its proper divisors (1933841000).

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

1167250840 is a wasteful number, since it uses less digits than its factorization.

1167250840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1167250840 is about 34165.0529049788. The cubic root of 1167250840 is about 1052.9022773785.

The spelling of 1167250840 in words is "one billion, one hundred sixty-seven million, two hundred fifty thousand, eight hundred forty".