40521093 has 8 divisors (see below), whose sum is σ = 55284768. Its totient is φ = 26385744.

The previous prime is 40521037. The next prime is 40521109. The reversal of 40521093 is 39012504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40521093 - 2⁶ = 40521029 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 (40521893) 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, 156930 + ... + 157187.

It is an arithmetic number, because the mean of its divisors is an integer number (6910596).

Almost surely, 2^40521093 is an apocalyptic number.

40521093 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40521093 is a deficient number, since it is larger than the sum of its proper divisors (14763675).

40521093 is a wasteful number, since it uses less digits than its factorization.

40521093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314163.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 40521093 is about 6365.6180375514. The cubic root of 40521093 is about 343.4738808326.

Adding to 40521093 its reverse (39012504), we get a palindrome (79533597).

The spelling of 40521093 in words is "forty million, five hundred twenty-one thousand, ninety-three".