38225686 has 4 divisors (see below), whose sum is σ = 57338532. Its totient is φ = 19112842.

The previous prime is 38225657. The next prime is 38225689. The reversal of 38225686 is 68652283.

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

It is a super-2 number, since 2×38225686² = 2922406140341192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38225689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9556420 + ... + 9556423.

It is an arithmetic number, because the mean of its divisors is an integer number (14334633).

Almost surely, 2^38225686 is an apocalyptic number.

38225686 is a deficient number, since it is larger than the sum of its proper divisors (19112846).

38225686 is a wasteful number, since it uses less digits than its factorization.

38225686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19112845.

The product of its digits is 138240, while the sum is 40.

The square root of 38225686 is about 6182.6924555569. The cubic root of 38225686 is about 336.8617982396.

The spelling of 38225686 in words is "thirty-eight million, two hundred twenty-five thousand, six hundred eighty-six".