38009436 has 12 divisors (see below), whose sum is σ = 88688712. Its totient is φ = 12669808.

The previous prime is 38009429. The next prime is 38009437. The reversal of 38009436 is 63490083.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 38009397 and 38009406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38009437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583715 + ... + 1583738.

It is an arithmetic number, because the mean of its divisors is an integer number (7390726).

Almost surely, 2^38009436 is an apocalyptic number.

It is an amenable number.

38009436 is an abundant number, since it is smaller than the sum of its proper divisors (50679276).

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

38009436 is a wasteful number, since it uses less digits than its factorization.

38009436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167460 (or 3167458 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 38009436 is about 6165.1793161270. The cubic root of 38009436 is about 336.2253660961.

The spelling of 38009436 in words is "thirty-eight million, nine thousand, four hundred thirty-six".