1163742690 has 64 divisors (see below), whose sum is σ = 3051976320. Its totient is φ = 281648640.

The previous prime is 1163742683. The next prime is 1163742703. The reversal of 1163742690 is 962473611.

It is a super-2 number, since 2×1163742690² = 2708594097056872200, which contains 22 as substring.

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, 220806 + ... + 226014.

It is an arithmetic number, because the mean of its divisors is an integer number (47687130).

Almost surely, 2^1163742690 is an apocalyptic number.

1163742690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163742690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1525988160).

1163742690 is an abundant number, since it is smaller than the sum of its proper divisors (1888233630).

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

1163742690 is a wasteful number, since it uses less digits than its factorization.

1163742690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1163742690 is about 34113.6730652095. The cubic root of 1163742690 is about 1051.8463929944.

The spelling of 1163742690 in words is "one billion, one hundred sixty-three million, seven hundred forty-two thousand, six hundred ninety".