38657760 has 48 divisors (see below), whose sum is σ = 121773456. Its totient is φ = 10308608.

The previous prime is 38657753. The next prime is 38657767. The reversal of 38657760 is 6775683.

It is an interprime number because it is at equal distance from previous prime (38657753) and next prime (38657767).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38657767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39789 + ... + 40748.

It is an arithmetic number, because the mean of its divisors is an integer number (2536947).

Almost surely, 2^38657760 is an apocalyptic number.

38657760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38657760 is an abundant number, since it is smaller than the sum of its proper divisors (83115696).

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

38657760 is a wasteful number, since it uses less digits than its factorization.

38657760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80555 (or 80547 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 38657760 is about 6217.5364896396. The cubic root of 38657760 is about 338.1262556001.

The spelling of 38657760 in words is "thirty-eight million, six hundred fifty-seven thousand, seven hundred sixty".