40381101 has 24 divisors (see below), whose sum is σ = 59701824. Its totient is φ = 26294400.

The previous prime is 40381093. The next prime is 40381109. The reversal of 40381101 is 10118304.

It is an interprime number because it is at equal distance from previous prime (40381093) and next prime (40381109).

It is not a de Polignac number, because 40381101 - 2³ = 40381093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40381109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100501 + ... + 100901.

It is an arithmetic number, because the mean of its divisors is an integer number (2487576).

Almost surely, 2^40381101 is an apocalyptic number.

It is an amenable number.

40381101 is a deficient number, since it is larger than the sum of its proper divisors (19320723).

40381101 is a wasteful number, since it uses less digits than its factorization.

40381101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 40381101 is about 6354.6125767036. The cubic root of 40381101 is about 343.0778806966.

Adding to 40381101 its reverse (10118304), we get a palindrome (50499405).

The spelling of 40381101 in words is "forty million, three hundred eighty-one thousand, one hundred one".