38821532 has 6 divisors (see below), whose sum is σ = 67937688. Its totient is φ = 19410764.

The previous prime is 38821529. The next prime is 38821537. The reversal of 38821532 is 23512883.

It is a super-2 number, since 2×38821532² = 3014222693654048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38821537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852688 + ... + 4852695.

It is an arithmetic number, because the mean of its divisors is an integer number (11322948).

Almost surely, 2^38821532 is an apocalyptic number.

It is an amenable number.

38821532 is a deficient number, since it is larger than the sum of its proper divisors (29116156).

38821532 is a wasteful number, since it uses less digits than its factorization.

38821532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705387 (or 9705385 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 38821532 is about 6230.6927383719. The cubic root of 38821532 is about 338.6030688612.

The spelling of 38821532 in words is "thirty-eight million, eight hundred twenty-one thousand, five hundred thirty-two".