307448020 has 24 divisors (see below), whose sum is σ = 704335968. Its totient is φ = 111799200.

The previous prime is 307448017. The next prime is 307448033. The reversal of 307448020 is 20844703.

It is a self number, because there is not a number n which added to its sum of digits gives 307448020.

It is a congruent number.

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, 698526 + ... + 698965.

It is an arithmetic number, because the mean of its divisors is an integer number (29347332).

Almost surely, 2^307448020 is an apocalyptic number.

It is an amenable number.

307448020 is an abundant number, since it is smaller than the sum of its proper divisors (396887948).

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

307448020 is a wasteful number, since it uses less digits than its factorization.

307448020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397511 (or 1397509 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 307448020 is about 17534.1957329100. The cubic root of 307448020 is about 674.9276703476.

The spelling of 307448020 in words is "three hundred seven million, four hundred forty-eight thousand, twenty".