38673738 has 24 divisors (see below), whose sum is σ = 83919108. Its totient is φ = 12871872.

The previous prime is 38673731. The next prime is 38673757. The reversal of 38673738 is 83737683.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 5461569 = 5763^2 + 2337^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38673693 and 38673702.

It is not an unprimeable number, because it can be changed into a prime (38673731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15720 + ... + 18012.

Almost surely, 2^38673738 is an apocalyptic number.

38673738 is an abundant number, since it is smaller than the sum of its proper divisors (45245370).

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

38673738 is a wasteful number, since it uses less digits than its factorization.

38673738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3235 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 38673738 is about 6218.8212709484. The cubic root of 38673738 is about 338.1728338909.

The spelling of 38673738 in words is "thirty-eight million, six hundred seventy-three thousand, seven hundred thirty-eight".