1238769870 has 32 divisors (see below), whose sum is σ = 3201744672. Its totient is φ = 304927872.

The previous prime is 1238769869. The next prime is 1238769877. The reversal of 1238769870 is 789678321.

1238769870 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238769877) 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, 1587777 + ... + 1588556.

It is an arithmetic number, because the mean of its divisors is an integer number (100054521).

Almost surely, 2^1238769870 is an apocalyptic number.

1238769870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1238769870 is an abundant number, since it is smaller than the sum of its proper divisors (1962974802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1238769870 is a wasteful number, since it uses less digits than its factorization.

1238769870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176356.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1238769870 is about 35196.1627169781. The cubic root of 1238769870 is about 1073.9816915480.

The spelling of 1238769870 in words is "one billion, two hundred thirty-eight million, seven hundred sixty-nine thousand, eight hundred seventy".