248489445 has 32 divisors (see below), whose sum is σ = 405055872. Its totient is φ = 130056192.

The previous prime is 248489443. The next prime is 248489471. The reversal of 248489445 is 544984842.

It is a happy number.

It is not a de Polignac number, because 248489445 - 2¹ = 248489443 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248489394 and 248489403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248489441) 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, 280974 + ... + 281856.

It is an arithmetic number, because the mean of its divisors is an integer number (12657996).

Almost surely, 2^248489445 is an apocalyptic number.

It is an amenable number.

248489445 is a deficient number, since it is larger than the sum of its proper divisors (156566427).

248489445 is a wasteful number, since it uses less digits than its factorization.

248489445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221.

The product of its digits is 1474560, while the sum is 48.

The square root of 248489445 is about 15763.5479826085. The cubic root of 248489445 is about 628.6891742109.

The spelling of 248489445 in words is "two hundred forty-eight million, four hundred eighty-nine thousand, four hundred forty-five".