38777140 has 24 divisors (see below), whose sum is σ = 81849600. Its totient is φ = 15431328.

The previous prime is 38777129. The next prime is 38777159. The reversal of 38777140 is 4177783.

38777140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 38777140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (3410400).

Almost surely, 2^38777140 is an apocalyptic number.

It is an amenable number.

38777140 is an abundant number, since it is smaller than the sum of its proper divisors (43072460).

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

38777140 is a wasteful number, since it uses less digits than its factorization.

38777140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951 (or 9949 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 38777140 is about 6227.1293546866. The cubic root of 38777140 is about 338.4739566592.

The spelling of 38777140 in words is "thirty-eight million, seven hundred seventy-seven thousand, one hundred forty".