38121236 has 24 divisors (see below), whose sum is σ = 67972800. Its totient is φ = 18703872.

The previous prime is 38121233. The next prime is 38121241. The reversal of 38121236 is 63212183.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38121233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65780 + ... + 66356.

It is an arithmetic number, because the mean of its divisors is an integer number (2832200).

Almost surely, 2^38121236 is an apocalyptic number.

It is an amenable number.

38121236 is a deficient number, since it is larger than the sum of its proper divisors (29851564).

38121236 is a wasteful number, since it uses less digits than its factorization.

38121236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 861 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 38121236 is about 6174.2397102801. The cubic root of 38121236 is about 336.5546983582.

The spelling of 38121236 in words is "thirty-eight million, one hundred twenty-one thousand, two hundred thirty-six".