38211972 has 48 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 12241152.

The previous prime is 38211961. The next prime is 38211973. The reversal of 38211972 is 27911283.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38211973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39033 + ... + 39999.

It is an arithmetic number, because the mean of its divisors is an integer number (1931160).

Almost surely, 2^38211972 is an apocalyptic number.

It is an amenable number.

38211972 is an abundant number, since it is smaller than the sum of its proper divisors (54483708).

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

38211972 is a wasteful number, since it uses less digits than its factorization.

38211972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1098 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 38211972 is about 6181.5832923289. The cubic root of 38211972 is about 336.8215087924.

The spelling of 38211972 in words is "thirty-eight million, two hundred eleven thousand, nine hundred seventy-two".