38393634 has 16 divisors (see below), whose sum is σ = 77249088. Its totient is φ = 12720912.

The previous prime is 38393629. The next prime is 38393653. The reversal of 38393634 is 43639383.

It is a super-2 number, since 2×38393634² = 2948142263451912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38393592 and 38393601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18157 + ... + 20160.

It is an arithmetic number, because the mean of its divisors is an integer number (4828068).

Almost surely, 2^38393634 is an apocalyptic number.

38393634 is an abundant number, since it is smaller than the sum of its proper divisors (38855454).

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

38393634 is a wasteful number, since it uses less digits than its factorization.

38393634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38489.

The product of its digits is 139968, while the sum is 39.

The square root of 38393634 is about 6196.2596782252. The cubic root of 38393634 is about 337.3544217142.

The spelling of 38393634 in words is "thirty-eight million, three hundred ninety-three thousand, six hundred thirty-four".