38783745 has 192 divisors, whose sum is σ = 96526080. Its totient is φ = 14515200.

The previous prime is 38783743. The next prime is 38783791. The reversal of 38783745 is 54738783.

It is not a de Polignac number, because 38783745 - 2¹ = 38783743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (564480) is a multiple of the sum of its prime divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 38783745.

It is not an unprimeable number, because it can be changed into a prime (38783743) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 945925 + ... + 945965.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^38783745 is an apocalyptic number.

38783745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38783745 is an abundant number, since it is smaller than the sum of its proper divisors (57742335).

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

38783745 is a wasteful number, since it uses less digits than its factorization.

38783745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 80 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 38783745 is about 6227.6596727824. The cubic root of 38783745 is about 338.4931732523.

The spelling of 38783745 in words is "thirty-eight million, seven hundred eighty-three thousand, seven hundred forty-five".