307420 has 24 divisors (see below), whose sum is σ = 680400. Its totient is φ = 116352.

The previous prime is 307409. The next prime is 307423. The reversal of 307420 is 24703.

It is a junction number, because it is equal to n+sod(n) for n = 307394 and 307403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307423) by changing a digit.

307420 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 in 7 ways as a sum of consecutive naturals, for example, 25 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (28350).

2³⁰⁷⁴²⁰ 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 307420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340200).

307420 is an abundant number, since it is smaller than the sum of its proper divisors (372980).

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

307420 is a wasteful number, since it uses less digits than its factorization.

307420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 307420 is about 554.4546870575. The cubic root of 307420 is about 67.4907166017.

It can be divided in two parts, 307 and 420, that added together give a palindrome (727).

The spelling of 307420 in words is "three hundred seven thousand, four hundred twenty", and thus it is an iban number.