1161402340 has 48 divisors (see below), whose sum is σ = 2816134272. Its totient is φ = 394085376.

The previous prime is 1161402283. The next prime is 1161402349. The reversal of 1161402340 is 432041611.

It is not an unprimeable number, because it can be changed into a prime (1161402349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29182 + ... + 56341.

It is an arithmetic number, because the mean of its divisors is an integer number (58669464).

Almost surely, 2^1161402340 is an apocalyptic number.

1161402340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161402340 is an abundant number, since it is smaller than the sum of its proper divisors (1654731932).

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

1161402340 is a wasteful number, since it uses less digits than its factorization.

1161402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85636 (or 85634 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1161402340 is about 34079.3535736815. The cubic root of 1161402340 is about 1051.1408129809.

Adding to 1161402340 its reverse (432041611), we get a palindrome (1593443951).

The spelling of 1161402340 in words is "one billion, one hundred sixty-one million, four hundred two thousand, three hundred forty".