38233400138 has 4 divisors (see below), whose sum is σ = 57350100210. Its totient is φ = 19116700068.

The previous prime is 38233400137. The next prime is 38233400141. The reversal of 38233400138 is 83100433283.

38233400138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33810751129 + 4422649009 = 183877^2 + 66503^2 .

It is a super-2 number, since 2×38233400138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38233400098 and 38233400107.

It is not an unprimeable number, because it can be changed into a prime (38233400137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9558350033 + ... + 9558350036.

Almost surely, 2^38233400138 is an apocalyptic number.

38233400138 is a deficient number, since it is larger than the sum of its proper divisors (19116700072).

38233400138 is a wasteful number, since it uses less digits than its factorization.

38233400138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19116700071.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 38233400138 in words is "thirty-eight billion, two hundred thirty-three million, four hundred thousand, one hundred thirty-eight".