1938986336 has 24 divisors (see below), whose sum is σ = 4362719760. Its totient is φ = 830994048.

The previous prime is 1938986333. The next prime is 1938986389. The reversal of 1938986336 is 6336898391.

It is a super-2 number, since 2×1938986336² = 7519336022389409792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938986333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4327871 + ... + 4328318.

It is an arithmetic number, because the mean of its divisors is an integer number (181779990).

Almost surely, 2^1938986336 is an apocalyptic number.

1938986336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1938986336 is an abundant number, since it is smaller than the sum of its proper divisors (2423733424).

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

1938986336 is an equidigital number, since it uses as much as digits as its factorization.

1938986336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656206 (or 8656198 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 56.

The square root of 1938986336 is about 44033.9225597720. The cubic root of 1938986336 is about 1246.9764440644.

The spelling of 1938986336 in words is "one billion, nine hundred thirty-eight million, nine hundred eighty-six thousand, three hundred thirty-six".