243949298 has 8 divisors (see below), whose sum is σ = 367820508. Its totient is φ = 121342464.

The previous prime is 243949273. The next prime is 243949319. The reversal of 243949298 is 892949342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 241895809 + 2053489 = 15553^2 + 1433^2 .

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

It is a super-2 number, since 2×243949298² = 119022519989385608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315611 + ... + 316382.

Almost surely, 2^243949298 is an apocalyptic number.

243949298 is a deficient number, since it is larger than the sum of its proper divisors (123871210).

243949298 is a wasteful number, since it uses less digits than its factorization.

243949298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632188.

The product of its digits is 1119744, while the sum is 50.

The square root of 243949298 is about 15618.8763360237. The cubic root of 243949298 is about 624.8366916256.

The spelling of 243949298 in words is "two hundred forty-three million, nine hundred forty-nine thousand, two hundred ninety-eight".