38940235392 has 64 divisors (see below), whose sum is σ = 103621269600. Its totient is φ = 12956703744.

The previous prime is 38940235379. The next prime is 38940235393. The reversal of 38940235392 is 29353204983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (38940235393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 122859 + ... + 304917.

Almost surely, 2^38940235392 is an apocalyptic number.

38940235392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38940235392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51810634800).

38940235392 is an abundant number, since it is smaller than the sum of its proper divisors (64681034208).

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

38940235392 is a wasteful number, since it uses less digits than its factorization.

38940235392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182633 (or 182621 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 38940235392 in words is "thirty-eight billion, nine hundred forty million, two hundred thirty-five thousand, three hundred ninety-two".