40645341 has 32 divisors (see below), whose sum is σ = 66355200. Its totient is φ = 24384240.

The previous prime is 40645331. The next prime is 40645343. The reversal of 40645341 is 14354604.

It is not a de Polignac number, because 40645341 - 2⁹ = 40644829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40645343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31140 + ... + 32418.

It is an arithmetic number, because the mean of its divisors is an integer number (2073600).

Almost surely, 2^40645341 is an apocalyptic number.

It is an amenable number.

40645341 is a deficient number, since it is larger than the sum of its proper divisors (25709859).

40645341 is a wasteful number, since it uses less digits than its factorization.

40645341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1400 counting only the distinct ones).

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

The square root of 40645341 is about 6375.3698716231. The cubic root of 40645341 is about 343.8245821201.

Adding to 40645341 its reverse (14354604), we get a palindrome (54999945).

The spelling of 40645341 in words is "forty million, six hundred forty-five thousand, three hundred forty-one".