1238457748 has 72 divisors (see below), whose sum is σ = 2442675872. Its totient is φ = 548856000.

The previous prime is 1238457743. The next prime is 1238457761. The reversal of 1238457748 is 8477548321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238457743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5869363 + ... + 5869573.

Almost surely, 2^1238457748 is an apocalyptic number.

It is an amenable number.

1238457748 is a deficient number, since it is larger than the sum of its proper divisors (1204218124).

1238457748 is a wasteful number, since it uses less digits than its factorization.

1238457748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 472 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The square root of 1238457748 is about 35191.7284031347. The cubic root of 1238457748 is about 1073.8914833828.

The spelling of 1238457748 in words is "one billion, two hundred thirty-eight million, four hundred fifty-seven thousand, seven hundred forty-eight".