38506545 has 48 divisors (see below), whose sum is σ = 83221632. Its totient is φ = 16001280.

The previous prime is 38506541. The next prime is 38506549. The reversal of 38506545 is 54560583.

It is an interprime number because it is at equal distance from previous prime (38506541) and next prime (38506549).

It is not a de Polignac number, because 38506545 - 2² = 38506541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38506541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2092 + ... + 9021.

It is an arithmetic number, because the mean of its divisors is an integer number (1733784).

Almost surely, 2^38506545 is an apocalyptic number.

38506545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38506545 is an abundant number, since it is smaller than the sum of its proper divisors (44715087).

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

38506545 is a wasteful number, since it uses less digits than its factorization.

38506545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142 (or 11139 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 38506545 is about 6205.3642117123. The cubic root of 38506545 is about 337.6848041385.

The spelling of 38506545 in words is "thirty-eight million, five hundred six thousand, five hundred forty-five".