1238847628 has 6 divisors (see below), whose sum is σ = 2167983356. Its totient is φ = 619423812.

The previous prime is 1238847619. The next prime is 1238847661. The reversal of 1238847628 is 8267488321.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154855950 + ... + 154855957.

Almost surely, 2^1238847628 is an apocalyptic number.

It is an amenable number.

1238847628 is a deficient number, since it is larger than the sum of its proper divisors (929135728).

1238847628 is a wasteful number, since it uses less digits than its factorization.

1238847628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309711911 (or 309711909 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 1238847628 is about 35197.2673371101. The cubic root of 1238847628 is about 1074.0041624748.

The spelling of 1238847628 in words is "one billion, two hundred thirty-eight million, eight hundred forty-seven thousand, six hundred twenty-eight".