243970041 has 16 divisors (see below), whose sum is σ = 372961664. Its totient is φ = 138962304.

The previous prime is 243970037. The next prime is 243970057. The reversal of 243970041 is 140079342.

It is a happy number.

It is not a de Polignac number, because 243970041 - 2² = 243970037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243969990 and 243970008.

It is not an unprimeable number, because it can be changed into a prime (243970021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11986 + ... + 25131.

It is an arithmetic number, because the mean of its divisors is an integer number (23310104).

Almost surely, 2^243970041 is an apocalyptic number.

243970041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243970041 is a deficient number, since it is larger than the sum of its proper divisors (128991623).

243970041 is a wasteful number, since it uses less digits than its factorization.

243970041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37440.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 243970041 is about 15619.5403581539. The cubic root of 243970041 is about 624.8544010708.

The spelling of 243970041 in words is "two hundred forty-three million, nine hundred seventy thousand, forty-one".