38777240 has 16 divisors (see below), whose sum is σ = 87248880. Its totient is φ = 15510880.

The previous prime is 38777239. The next prime is 38777261. The reversal of 38777240 is 4277783.

38777240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38777194 and 38777203.

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 3 ways as a sum of consecutive naturals, for example, 484676 + ... + 484755.

It is an arithmetic number, because the mean of its divisors is an integer number (5453055).

Almost surely, 2^38777240 is an apocalyptic number.

It is an amenable number.

38777240 is an abundant number, since it is smaller than the sum of its proper divisors (48471640).

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

38777240 is a wasteful number, since it uses less digits than its factorization.

38777240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969442 (or 969438 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 38777240 is about 6227.1373840634. The cubic root of 38777240 is about 338.4742476156.

The spelling of 38777240 in words is "thirty-eight million, seven hundred seventy-seven thousand, two hundred forty".