248434905 has 8 divisors (see below), whose sum is σ = 397495872. Its totient is φ = 132498608.

The previous prime is 248434877. The next prime is 248434931. The reversal of 248434905 is 509434842.

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

It is a cyclic number.

It is not a de Polignac number, because 248434905 - 2¹⁰ = 248433881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8281149 + ... + 8281178.

It is an arithmetic number, because the mean of its divisors is an integer number (49686984).

Almost surely, 2^248434905 is an apocalyptic number.

It is an amenable number.

248434905 is a deficient number, since it is larger than the sum of its proper divisors (149060967).

248434905 is a wasteful number, since it uses less digits than its factorization.

248434905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16562335.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 248434905 is about 15761.8179471786. The cubic root of 248434905 is about 628.6431746494.

The spelling of 248434905 in words is "two hundred forty-eight million, four hundred thirty-four thousand, nine hundred five".