40641354 has 96 divisors (see below), whose sum is σ = 100835280. Its totient is φ = 11741184.

The previous prime is 40641353. The next prime is 40641371. The reversal of 40641354 is 45314604.

40641354 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in 8 ways, for example, as 5890329 + 34751025 = 2427^2 + 5895^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40641353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359602 + ... + 359714.

Almost surely, 2^40641354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40641354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50417640).

40641354 is an abundant number, since it is smaller than the sum of its proper divisors (60193926).

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

40641354 is a wasteful number, since it uses less digits than its factorization.

40641354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40641354 is about 6375.0571762142. The cubic root of 40641354 is about 343.8133395570.

Adding to 40641354 its reverse (45314604), we get a palindrome (85955958).

The spelling of 40641354 in words is "forty million, six hundred forty-one thousand, three hundred fifty-four".