1248457772 has 36 divisors (see below), whose sum is σ = 2280814536. Its totient is φ = 597891840.

The previous prime is 1248457751. The next prime is 1248457799. The reversal of 1248457772 is 2777548421.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439268 + ... + 442100.

Almost surely, 2^1248457772 is an apocalyptic number.

It is an amenable number.

1248457772 is a deficient number, since it is larger than the sum of its proper divisors (1032356764).

1248457772 is a wasteful number, since it uses less digits than its factorization.

1248457772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026 (or 2995 counting only the distinct ones).

The product of its digits is 878080, while the sum is 47.

The square root of 1248457772 is about 35333.5219303143. The cubic root of 1248457772 is about 1076.7741454282.

The spelling of 1248457772 in words is "one billion, two hundred forty-eight million, four hundred fifty-seven thousand, seven hundred seventy-two".