307072 has 16 divisors (see below), whose sum is σ = 612000. Its totient is φ = 153472.

The previous prime is 307067. The next prime is 307079. The reversal of 307072 is 270703.

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307079) by changing a digit.

307072 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072 + ... + 1327.

It is an arithmetic number, because the mean of its divisors is an integer number (38250).

2³⁰⁷⁰⁷² is an apocalyptic number.

307072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

307072 is a deficient number, since it is larger than the sum of its proper divisors (304928).

307072 is an equidigital number, since it uses as much as digits as its factorization.

307072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2401 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 307072 is about 554.1407763376. The cubic root of 307072 is about 67.4652404482.

Adding to 307072 its reverse (270703), we get a palindrome (577775).

The spelling of 307072 in words is "three hundred seven thousand, seventy-two", and thus it is an iban number.