8538280949 has 16 divisors (see below), whose sum is σ = 9743976000. Its totient is φ = 7410184320.

The previous prime is 8538280901. The next prime is 8538280967. The reversal of 8538280949 is 9490828358.

It is not a de Polignac number, because 8538280949 - 2²⁰ = 8537232373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8538280894 and 8538280903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538280999) 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, 121979 + ... + 178760.

It is an arithmetic number, because the mean of its divisors is an integer number (608998500).

Almost surely, 2^8538280949 is an apocalyptic number.

8538280949 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

8538280949 is a deficient number, since it is larger than the sum of its proper divisors (1205695051).

8538280949 is a wasteful number, since it uses less digits than its factorization.

8538280949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300868.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The square root of 8538280949 is about 92402.8189450950. The cubic root of 8538280949 is about 2043.8866813868.

The spelling of 8538280949 in words is "eight billion, five hundred thirty-eight million, two hundred eighty thousand, nine hundred forty-nine".