243907948 has 6 divisors (see below), whose sum is σ = 426838916. Its totient is φ = 121953972.

The previous prime is 243907931. The next prime is 243907967. The reversal of 243907948 is 849709342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243907898 and 243907907.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30488490 + ... + 30488497.

Almost surely, 2^243907948 is an apocalyptic number.

It is an amenable number.

243907948 is a deficient number, since it is larger than the sum of its proper divisors (182930968).

243907948 is a wasteful number, since it uses less digits than its factorization.

243907948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60976991 (or 60976989 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 243907948 is about 15617.5525611409. The cubic root of 243907948 is about 624.8013858506.

The spelling of 243907948 in words is "two hundred forty-three million, nine hundred seven thousand, nine hundred forty-eight".