41388561 has 12 divisors (see below), whose sum is σ = 60764340. Its totient is φ = 27139680.

The previous prime is 41388553. The next prime is 41388587. The reversal of 41388561 is 16588314.

41388561 is a `hidden beast` number, since 4 + 13 + 88 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 36978561 = 2100^2 + 6081^2 .

It is not a de Polignac number, because 41388561 - 2³ = 41388553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41388511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37146 + ... + 38243.

It is an arithmetic number, because the mean of its divisors is an integer number (5063695).

Almost surely, 2^41388561 is an apocalyptic number.

It is an amenable number.

41388561 is a deficient number, since it is larger than the sum of its proper divisors (19375779).

41388561 is a wasteful number, since it uses less digits than its factorization.

41388561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75456 (or 75453 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 41388561 is about 6433.3942052388. The cubic root of 41388561 is about 345.9076039386.

The spelling of 41388561 in words is "forty-one million, three hundred eighty-eight thousand, five hundred sixty-one".