297428945 has 32 divisors (see below), whose sum is σ = 411903360. Its totient is φ = 203904000.

The previous prime is 297428933. The next prime is 297428947. The reversal of 297428945 is 549824792.

It is not a de Polignac number, because 297428945 - 2⁸ = 297428689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 297428893 and 297428902.

It is not an unprimeable number, because it can be changed into a prime (297428947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251255 + ... + 252435.

It is an arithmetic number, because the mean of its divisors is an integer number (12871980).

Almost surely, 2^297428945 is an apocalyptic number.

It is an amenable number.

297428945 is a deficient number, since it is larger than the sum of its proper divisors (114474415).

297428945 is a wasteful number, since it uses less digits than its factorization.

297428945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its digits is 1451520, while the sum is 50.

The square root of 297428945 is about 17246.1284061090. The cubic root of 297428945 is about 667.5150730464.

The spelling of 297428945 in words is "two hundred ninety-seven million, four hundred twenty-eight thousand, nine hundred forty-five".