307220048 has 10 divisors (see below), whose sum is σ = 595238874. Its totient is φ = 153610016.

The previous prime is 307220041. The next prime is 307220051. The reversal of 307220048 is 840022703.

It can be written as a sum of positive squares in only one way, i.e., 187361344 + 119858704 = 13688^2 + 10948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 307219999 and 307220026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307220041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9600611 + ... + 9600642.

Almost surely, 2^307220048 is an apocalyptic number.

It is an amenable number.

307220048 is a deficient number, since it is larger than the sum of its proper divisors (288018826).

307220048 is a wasteful number, since it uses less digits than its factorization.

307220048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19201261 (or 19201255 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 307220048 is about 17527.6937444719. The cubic root of 307220048 is about 674.7608099934.

The spelling of 307220048 in words is "three hundred seven million, two hundred twenty thousand, forty-eight".