40645226 has 8 divisors (see below), whose sum is σ = 61003584. Its totient is φ = 20310700.

The previous prime is 40645217. The next prime is 40645229. The reversal of 40645226 is 62254604.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40645229) 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, 800 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (7625448).

Almost surely, 2^40645226 is an apocalyptic number.

40645226 is a deficient number, since it is larger than the sum of its proper divisors (20358358).

40645226 is a wasteful number, since it uses less digits than its factorization.

40645226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11916.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 40645226 is about 6375.3608525322. The cubic root of 40645226 is about 343.8242578528.

The spelling of 40645226 in words is "forty million, six hundred forty-five thousand, two hundred twenty-six".