1248386949 has 12 divisors (see below), whose sum is σ = 1809103296. Its totient is φ = 829545192.

The previous prime is 1248386941. The next prime is 1248386987. The reversal of 1248386949 is 9496838421.

It is not a de Polignac number, because 1248386949 - 2³ = 1248386941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1248386895 and 1248386904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248386941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223149 + ... + 228674.

It is an arithmetic number, because the mean of its divisors is an integer number (150758608).

Almost surely, 2^1248386949 is an apocalyptic number.

It is an amenable number.

1248386949 is a deficient number, since it is larger than the sum of its proper divisors (560716347).

1248386949 is a wasteful number, since it uses less digits than its factorization.

1248386949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452136 (or 452133 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 1248386949 is about 35332.5197091858. The cubic root of 1248386949 is about 1076.7537838218.

The spelling of 1248386949 in words is "one billion, two hundred forty-eight million, three hundred eighty-six thousand, nine hundred forty-nine".