307424391138 has 96 divisors (see below), whose sum is σ = 715269372480. Its totient is φ = 95085450240.

The previous prime is 307424391107. The next prime is 307424391163. The reversal of 307424391138 is 831193424703.

307424391138 is a `hidden beast` number, since 3 + 0 + 7 + 424 + 3 + 91 + 138 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 307424391093 and 307424391102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9433933 + ... + 9466463.

It is an arithmetic number, because the mean of its divisors is an integer number (7450722630).

Almost surely, 2^307424391138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307424391138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357634686240).

307424391138 is an abundant number, since it is smaller than the sum of its proper divisors (407844981342).

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

307424391138 is a wasteful number, since it uses less digits than its factorization.

307424391138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32992 (or 32989 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 307424391138 in words is "three hundred seven billion, four hundred twenty-four million, three hundred ninety-one thousand, one hundred thirty-eight".