38820546 has 20 divisors (see below), whose sum is σ = 86987142. Its totient is φ = 12940128.

The previous prime is 38820541. The next prime is 38820547. The reversal of 38820546 is 64502883.

38820546 is a `hidden beast` number, since 38 + 82 + 0 + 546 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37344321 + 1476225 = 6111^2 + 1215^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38820546.

It is not an unprimeable number, because it can be changed into a prime (38820541) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 119655 + ... + 119978.

Almost surely, 2^38820546 is an apocalyptic number.

38820546 is an abundant number, since it is smaller than the sum of its proper divisors (48166596).

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

38820546 is a wasteful number, since it uses less digits than its factorization.

38820546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239647 (or 239638 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 38820546 is about 6230.6136134413. The cubic root of 38820546 is about 338.6002021921.

The spelling of 38820546 in words is "thirty-eight million, eight hundred twenty thousand, five hundred forty-six".