41388981 has 4 divisors (see below), whose sum is σ = 55185312. Its totient is φ = 27592652.

The previous prime is 41388979. The next prime is 41389013. The reversal of 41388981 is 18988314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41388981 - 2¹ = 41388979 is a prime.

It is a super-2 number, since 2×41388981² = 3426095496436722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41388911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6898161 + ... + 6898166.

It is an arithmetic number, because the mean of its divisors is an integer number (13796328).

Almost surely, 2^41388981 is an apocalyptic number.

It is an amenable number.

41388981 is a deficient number, since it is larger than the sum of its proper divisors (13796331).

41388981 is a wasteful number, since it uses less digits than its factorization.

41388981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13796330.

The product of its digits is 55296, while the sum is 42.

The square root of 41388981 is about 6433.4268473342. The cubic root of 41388981 is about 345.9087739938.

The spelling of 41388981 in words is "forty-one million, three hundred eighty-eight thousand, nine hundred eighty-one".