1238377136 has 20 divisors (see below), whose sum is σ = 2525638200. Its totient is φ = 586599552.

The previous prime is 1238377073. The next prime is 1238377141. The reversal of 1238377136 is 6317738321.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1238377093 and 1238377102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036501 + ... + 2037108.

It is an arithmetic number, because the mean of its divisors is an integer number (126281910).

Almost surely, 2^1238377136 is an apocalyptic number.

1238377136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1238377136 is an abundant number, since it is smaller than the sum of its proper divisors (1287261064).

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

1238377136 is a wasteful number, since it uses less digits than its factorization.

1238377136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073636 (or 4073630 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 1238377136 is about 35190.5830585400. The cubic root of 1238377136 is about 1073.8681827848.

The spelling of 1238377136 in words is "one billion, two hundred thirty-eight million, three hundred seventy-seven thousand, one hundred thirty-six".