38129075 has 6 divisors (see below), whose sum is σ = 47280084. Its totient is φ = 30503240.

The previous prime is 38129053. The next prime is 38129107. The reversal of 38129075 is 57092183.

It is not a de Polignac number, because 38129075 - 2¹⁸ = 37866931 is a prime.

It is a super-4 number, since 4×38129075⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 762557 + ... + 762606.

It is an arithmetic number, because the mean of its divisors is an integer number (7880014).

Almost surely, 2^38129075 is an apocalyptic number.

38129075 is a deficient number, since it is larger than the sum of its proper divisors (9151009).

38129075 is a wasteful number, since it uses less digits than its factorization.

38129075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525173 (or 1525168 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 38129075 is about 6174.8744926517. The cubic root of 38129075 is about 336.5777657413.

The spelling of 38129075 in words is "thirty-eight million, one hundred twenty-nine thousand, seventy-five".