38158425 has 24 divisors (see below), whose sum is σ = 70099680. Its totient is φ = 20350800.

The previous prime is 38158409. The next prime is 38158429. The reversal of 38158425 is 52485183.

It is a happy number.

It is not a de Polignac number, because 38158425 - 2⁴ = 38158409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38158425.

It is not an unprimeable number, because it can be changed into a prime (38158429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27591 + ... + 28940.

It is an arithmetic number, because the mean of its divisors is an integer number (2920820).

Almost surely, 2^38158425 is an apocalyptic number.

It is an amenable number.

38158425 is a deficient number, since it is larger than the sum of its proper divisors (31941255).

38158425 is a wasteful number, since it uses less digits than its factorization.

38158425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56550 (or 56539 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 38158425 is about 6177.2506020073. The cubic root of 38158425 is about 336.6641042622.

It can be divided in two parts, 38158 and 425, that added together give a palindrome (38583).

The spelling of 38158425 in words is "thirty-eight million, one hundred fifty-eight thousand, four hundred twenty-five".