307648692 has 144 divisors (see below), whose sum is σ = 880955712. Its totient is φ = 93312000.

The previous prime is 307648661. The next prime is 307648717. The reversal of 307648692 is 296846703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1225567 + ... + 1225817.

It is an arithmetic number, because the mean of its divisors is an integer number (6117748).

Almost surely, 2^307648692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307648692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440477856).

307648692 is an abundant number, since it is smaller than the sum of its proper divisors (573307020).

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

307648692 is a wasteful number, since it uses less digits than its factorization.

307648692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 366 counting only the distinct ones).

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

The square root of 307648692 is about 17539.9171035669. The cubic root of 307648692 is about 675.0744806703.

The spelling of 307648692 in words is "three hundred seven million, six hundred forty-eight thousand, six hundred ninety-two".