145438038 has 32 divisors (see below), whose sum is σ = 326229120. Its totient is φ = 48024360.

The previous prime is 145438031. The next prime is 145438057. The reversal of 145438038 is 830834541.

145438038 is a `hidden beast` number, since 1 + 4 + 543 + 80 + 38 = 666.

145438038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145437993 and 145438011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145438031) 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, 6808 + ... + 18363.

It is an arithmetic number, because the mean of its divisors is an integer number (10194660).

Almost surely, 2^145438038 is an apocalyptic number.

145438038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145438038 is an abundant number, since it is smaller than the sum of its proper divisors (180791082).

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

145438038 is a wasteful number, since it uses less digits than its factorization.

145438038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25289 (or 25283 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 145438038 is about 12059.7694007804. The cubic root of 145438038 is about 525.8872832637.

The spelling of 145438038 in words is "one hundred forty-five million, four hundred thirty-eight thousand, thirty-eight".