38821377 has 12 divisors (see below), whose sum is σ = 60212976. Its totient is φ = 22183560.

The previous prime is 38821361. The next prime is 38821381. The reversal of 38821377 is 77312883.

It is not a de Polignac number, because 38821377 - 2⁴ = 38821361 is a prime.

It is a super-2 number, since 2×38821377² = 3014198624352258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38821337) 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, 131899 + ... + 132192.

It is an arithmetic number, because the mean of its divisors is an integer number (5017748).

Almost surely, 2^38821377 is an apocalyptic number.

It is an amenable number.

38821377 is a deficient number, since it is larger than the sum of its proper divisors (21391599).

38821377 is a wasteful number, since it uses less digits than its factorization.

38821377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264108 (or 264101 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 38821377 is about 6230.6802999352. The cubic root of 38821377 is about 338.6026182217.

The spelling of 38821377 in words is "thirty-eight million, eight hundred twenty-one thousand, three hundred seventy-seven".