1170723540 has 96 divisors (see below), whose sum is σ = 3752872704. Its totient is φ = 267125760.

The previous prime is 1170723527. The next prime is 1170723559. The reversal of 1170723540 is 453270711.

It is a super-2 number, since 2×1170723540² = 2741187214220263200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1170723498 and 1170723507.

It is a congruent number.

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, 275512 + ... + 279728.

It is an arithmetic number, because the mean of its divisors is an integer number (39092424).

Almost surely, 2^1170723540 is an apocalyptic number.

1170723540 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 1170723540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1876436352).

1170723540 is an abundant number, since it is smaller than the sum of its proper divisors (2582149164).

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

1170723540 is a wasteful number, since it uses less digits than its factorization.

1170723540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1170723540 is about 34215.8375609892. The cubic root of 1170723540 is about 1053.9454103873.

The spelling of 1170723540 in words is "one billion, one hundred seventy million, seven hundred twenty-three thousand, five hundred forty".