307238401 has 4 divisors (see below), whose sum is σ = 307308100. Its totient is φ = 307168704.

The previous prime is 307238381. The next prime is 307238419. The reversal of 307238401 is 104832703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22810176 + 284428225 = 4776^2 + 16865^2 .

It is a cyclic number.

It is not a de Polignac number, because 307238401 - 2⁵ = 307238369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 307238401.

It is not an unprimeable number, because it can be changed into a prime (307238431) 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, 27756 + ... + 37213.

It is an arithmetic number, because the mean of its divisors is an integer number (76827025).

Almost surely, 2^307238401 is an apocalyptic number.

It is an amenable number.

307238401 is a deficient number, since it is larger than the sum of its proper divisors (69699).

307238401 is an equidigital number, since it uses as much as digits as its factorization.

307238401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69698.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 307238401 is about 17528.2172795752. The cubic root of 307238401 is about 674.7742462243.

The spelling of 307238401 in words is "three hundred seven million, two hundred thirty-eight thousand, four hundred one".