303490747 has 8 divisors (see below), whose sum is σ = 347957216. Its totient is φ = 259301952.

The previous prime is 303490739. The next prime is 303490753. The reversal of 303490747 is 747094303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 303490747 - 2³ = 303490739 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (303490717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67068 + ... + 71449.

It is an arithmetic number, because the mean of its divisors is an integer number (43494652).

Almost surely, 2^303490747 is an apocalyptic number.

303490747 is a deficient number, since it is larger than the sum of its proper divisors (44466469).

303490747 is a wasteful number, since it uses less digits than its factorization.

303490747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138837.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 303490747 is about 17420.9858217037. The cubic root of 303490747 is about 672.0194118483.

It can be divided in two parts, 30349074 and 7, that added together give a square (30349081 = 5509²).

The spelling of 303490747 in words is "three hundred three million, four hundred ninety thousand, seven hundred forty-seven".