38145500 has 96 divisors (see below), whose sum is σ = 90574848. Its totient is φ = 13992000.

The previous prime is 38145479. The next prime is 38145509. The reversal of 38145500 is 554183.

38145500 = T₄₂₆ + T₄₂₇ + ... + T₆₇₃.

It is a self number, because there is not a number n which added to its sum of digits gives 38145500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38145509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356447 + ... + 356553.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^38145500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38145500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45287424).

38145500 is an abundant number, since it is smaller than the sum of its proper divisors (52429348).

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

38145500 is a wasteful number, since it uses less digits than its factorization.

38145500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 38145500 is about 6176.2043359980. The cubic root of 38145500 is about 336.6260884117.

Adding to 38145500 its reverse (554183), we get a palindrome (38699683).

The spelling of 38145500 in words is "thirty-eight million, one hundred forty-five thousand, five hundred".