1308091242 has 16 divisors (see below), whose sum is σ = 2660525280. Its totient is φ = 428639952.

The previous prime is 1308091223. The next prime is 1308091297. The reversal of 1308091242 is 2421908031.

It is a super-2 number, since 2×1308091242² = 3422205394794205128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847233 + ... + 1847940.

It is an arithmetic number, because the mean of its divisors is an integer number (166282830).

Almost surely, 2^1308091242 is an apocalyptic number.

1308091242 is an abundant number, since it is smaller than the sum of its proper divisors (1352434038).

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

1308091242 is a wasteful number, since it uses less digits than its factorization.

1308091242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695237.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1308091242 is about 36167.5440415851. The cubic root of 1308091242 is about 1093.6524897582.

Adding to 1308091242 its reverse (2421908031), we get a palindrome (3729999273).

The spelling of 1308091242 in words is "one billion, three hundred eight million, ninety-one thousand, two hundred forty-two".