307466240 has 52 divisors (see below), whose sum is σ = 737878044. Its totient is φ = 122978304.

The previous prime is 307466239. The next prime is 307466249. The reversal of 307466240 is 42664703.

It can be written as a sum of positive squares in 2 ways, for example, as 168792064 + 138674176 = 12992^2 + 11776^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 307466197 and 307466206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307466249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12974 + ... + 27986.

Almost surely, 2^307466240 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 307466240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368939022).

307466240 is an abundant number, since it is smaller than the sum of its proper divisors (430411804).

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

307466240 is an equidigital number, since it uses as much as digits as its factorization.

307466240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15042 (or 15020 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 307466240 is about 17534.7152814068. The cubic root of 307466240 is about 674.9410026168.

The spelling of 307466240 in words is "three hundred seven million, four hundred sixty-six thousand, two hundred forty".